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846 lines
19 KiB
846 lines
19 KiB
/*
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* API.C
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* GizmoBar Version 1.00, Win32 version August 1993
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*
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* API functions affecting a GizmoBar and a message processing function to
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* handle the equivalent called through messages.
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*
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* Copyright (c)1993 Microsoft Corporation, All Rights Reserved
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*
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* Kraig Brockschmidt, Software Design Engineer
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* Microsoft Systems Developer Relations
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*
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* Internet : [email protected]
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* Compuserve: >INTERNET:[email protected]
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*/
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#include <windows.h>
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#include "gizmoint.h"
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/*
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* GBMessageHandler
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*
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* Purpose:
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* Processes control messages that are equivalents of available
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* control API. The data passed with these messages is simply
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* extracted from structures and passed as parameters to their
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* equivalent function.
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*
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* Parameters:
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* <Standard Message Parameters> plus
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* pGB LPGIZMOBAR providing control-specific data.
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*
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* Return Value:
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* LRESULT Return value from equivalent API function.
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*/
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LRESULT GBMessageHandler(HWND hWnd, UINT iMsg, WPARAM wParam
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, LPARAM lParam, LPGIZMOBAR pGB)
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{
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LRESULT lRet=0L;
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LPCREATEGIZMO pCG;
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LPGBMSG pMsg;
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LPGBGETTEXT pGT;
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LPGBGETINT pGI;
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LPGBSETINT pSI;
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if (NULL==pGB)
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return 0L;
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switch (iMsg)
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{
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case GBM_HWNDASSOCIATESET:
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lRet=(LRESULT)(UINT)GBHwndAssociateSet(hWnd, (HWND)wParam);
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break;
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case GBM_HWNDASSOCIATEGET:
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lRet=(LRESULT)(UINT)GBHwndAssociateGet(hWnd);
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break;
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case GBM_GIZMOADD:
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pCG=(LPCREATEGIZMO)lParam;
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lRet=(LRESULT)GBGizmoAdd(pCG->hWndParent, pCG->iType, pCG->iGizmo
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, pCG->uID, pCG->dx, pCG->dy, pCG->pszText, pCG->hBmp
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, pCG->iImage, pCG->uState);
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break;
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case GBM_GIZMOREMOVE:
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lRet=(LRESULT)GBGizmoRemove(hWnd, wParam);
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break;
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case GBM_GIZMOSENDMESSAGE:
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pMsg=(LPGBMSG)lParam;
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lRet=GBGizmoSendMessage(hWnd, wParam, pMsg->iMsg, pMsg->wParam, pMsg->lParam);
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break;
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case GBM_GIZMOSHOW:
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lRet=(LRESULT)GBGizmoShow(hWnd, wParam, (BOOL)LOWORD(lParam));
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break;
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case GBM_GIZMOENABLE:
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lRet=(LRESULT)GBGizmoEnable(hWnd, wParam, (BOOL)LOWORD(lParam));
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break;
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case GBM_GIZMOCHECK:
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lRet=(LRESULT)GBGizmoCheck(hWnd, wParam, (BOOL)LOWORD(lParam));
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break;
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case GBM_GIZMOFOCUSSET:
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lRet=(LRESULT)GBGizmoFocusSet(hWnd, wParam);
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break;
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case GBM_GIZMOEXIST:
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lRet=(LRESULT)GBGizmoExist(hWnd, wParam);
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break;
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case GBM_GIZMOTYPEGET:
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lRet=(LRESULT)GBGizmoTypeGet(hWnd, wParam);
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break;
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case GBM_GIZMODATASET:
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lRet=(LRESULT)GBGizmoDataSet(hWnd, wParam, (DWORD)lParam);
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break;
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case GBM_GIZMODATAGET:
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lRet=(LRESULT)GBGizmoDataGet(hWnd, wParam);
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break;
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case GBM_GIZMONOTIFYSET:
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lRet=(LRESULT)GBGizmoNotifySet(hWnd, wParam, (BOOL)LOWORD(lParam));
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break;
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case GBM_GIZMONOTIFYGET:
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lRet=(LRESULT)GBGizmoNotifyGet(hWnd, wParam);
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break;
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case GBM_GIZMOTEXTGET:
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pGT=(LPGBGETTEXT)lParam;
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lRet=(LRESULT)GBGizmoTextGet(hWnd, wParam, pGT->psz, pGT->cch);
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break;
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case GBM_GIZMOTEXTSET:
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GBGizmoTextSet(hWnd, wParam, (LPTSTR)lParam);
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break;
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case GBM_GIZMOINTGET:
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pGI=(LPGBGETINT)lParam;
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lRet=(LRESULT)GBGizmoIntGet(hWnd, wParam, &pGI->fSuccess, pGI->fSigned);
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break;
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case GBM_GIZMOINTSET:
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pSI=(LPGBSETINT)lParam;
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GBGizmoIntSet(hWnd, wParam, pSI->uValue, pSI->fSigned);
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break;
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default:
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break;
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}
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return lRet;
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}
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/*
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* PGizmoFromHwndID
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*
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* Purpose:
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* Retrieves the pGizmo for the given GizmoBar and the gizmo ID.
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*
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* Parameters:
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* hWnd HWND of a GizmoBar.
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* uID UINT gizmo identifier.
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*
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* Return Value:
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* LPGIZMO NULL if the gizmo does not exist or hWnd is invalid.
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* non-NULL LPGIZMO otherwise.
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*/
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LPGIZMO PGizmoFromHwndID(HWND hWnd, UINT uID)
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{
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LPGIZMOBAR pGB;
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if (!IsWindow(hWnd))
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return FALSE;
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pGB=(LPGIZMOBAR)GetWindowLong(hWnd, GBWL_STRUCTURE);
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if (NULL==pGB)
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return FALSE;
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return GizmoPFind(&pGB->pGizmos, uID);
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}
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/*
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* GBHwndAssociateSet
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*
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* Purpose:
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* Changes the associate window of a GizmoBar.
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*
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* Parameters:
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* hWnd HWND of the control window.
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*
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* Set Parameters:
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* hWndAssociate HWND of new associate.
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*
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* Return Value:
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* HWND Handle of previous associate.
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*/
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HWND WINAPI GBHwndAssociateSet(HWND hWnd, HWND hWndNew)
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{
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HWND hWndOld=NULL;
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LPGIZMOBAR pGB;
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pGB=(LPGIZMOBAR)GetWindowLong(hWnd, GBWL_STRUCTURE);
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if (NULL!=pGB)
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{
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hWndOld=pGB->hWndAssociate;
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pGB->hWndAssociate=hWndNew;
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if (NULL!=hWndOld)
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SendCommand(hWndOld, pGB->uID, GBN_ASSOCIATELOSS, hWnd);
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if (NULL!=hWndNew)
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SendCommand(hWndNew, pGB->uID, GBN_ASSOCIATEGAIN, hWnd);
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}
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return hWndOld;
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}
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/*
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* GBHwndAssociateGet
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*
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* Purpose:
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* Retrieves the associate window of a GizmoBar
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*
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* Parameters:
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* hWnd HWND of the control window.
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*
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* Set Parameters:
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* hWndAssociate HWND of new associate.
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*
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* Return Value:
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* HWND Handle of current associate.
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*/
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HWND WINAPI GBHwndAssociateGet(HWND hWnd)
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{
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HWND hWndOld=NULL;
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LPGIZMOBAR pGB;
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pGB=(LPGIZMOBAR)GetWindowLong(hWnd, GBWL_STRUCTURE);
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if (NULL!=pGB)
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hWndOld=pGB->hWndAssociate;
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return hWndOld;
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}
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/*
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* GBGizmoAdd
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*
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* Purpose:
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* Creates a new gizmo on the GizmoBar. Subsequent operations should
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* be done using the identifier, uID, for this gizmo.
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*
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* Parameters:
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* hWnd HWND of the GizmoBar.
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* iType UINT type of the gizmo to create.
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* iGizmo UINT position (zero-based) at which to place the gizmo.
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* uID UINT identifier for WM_COMMAND from this gizmo.
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* dx, dy UINT dimensions of the gizmo.
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* pszText LPTSTR initial text for edit, list, combo, and text gizmos.
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* hBitmap HBITMAP for gizmos of the button types (COMMAND or
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* ATTRIBUTE) specifies a source bitmap from which the
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* button image is taken.
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* iImage UINT index into hBitmap for the image for this button.
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* uState UINT initial state of the gizmo.
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*
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* Return Value:
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* BOOL TRUE if creation succeeded, FALSE otherwise.
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*/
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BOOL WINAPI GBGizmoAdd(HWND hWnd, UINT iType, UINT iGizmo, UINT uID
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, UINT dx, UINT dy, LPTSTR pszText, HBITMAP hBmp, UINT iImage, UINT uState)
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{
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BOOL fSuccess;
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LPGIZMOBAR pGB;
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LPGIZMO pGizmo;
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if (!IsWindow(hWnd))
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return FALSE;
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pGB=(LPGIZMOBAR)GetWindowLong(hWnd, GBWL_STRUCTURE);
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if (NULL==pGB)
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return FALSE;
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/*
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* This automatically creates the windows, allocates structures, includes
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* the gizmo in pGB->pGizmos, and so forth.
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*/
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pGizmo=GizmoPAllocate((LPINT)&fSuccess, &pGB->pGizmos, hWnd, iType
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, iGizmo, uID, dx, dy, pszText, hBmp, iImage, uState);
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if (fSuccess)
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{
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if (NULL!=pGB->hWndAssociate)
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SendCommand(pGB->hWndAssociate,GBN_GIZMOADDED, pGB->uID, hWnd);
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InvalidateRect(hWnd, NULL, TRUE);
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UpdateWindow(hWnd);
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}
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else
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GizmoPFree(&pGB->pGizmos, pGizmo);
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return fSuccess;
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}
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/*
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* GBGizmoRemove
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*
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* Purpose:
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* Removes an existing gizmo from the GizmoBar.
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*
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* Parameters:
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* hWnd HWND of the GizmoBar.
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* uID UINT identifier for this gizmo.
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*
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* Return Value:
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* BOOL TRUE if deletion succeeded, FALSE otherwise.
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*/
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BOOL WINAPI GBGizmoRemove(HWND hWnd, UINT uID)
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{
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LPGIZMOBAR pGB;
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LPGIZMO pGizmo;
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if (!IsWindow(hWnd))
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return FALSE;
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pGB=(LPGIZMOBAR)GetWindowLong(hWnd, GBWL_STRUCTURE);
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if (NULL==pGB)
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return FALSE;
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pGizmo=GizmoPFind(&pGB->pGizmos, uID);
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if (NULL==pGizmo)
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return FALSE;
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GizmoPFree(&pGB->pGizmos, pGizmo);
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if (NULL!=pGB->hWndAssociate)
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SendCommand(pGB->hWndAssociate, GBN_GIZMOREMOVED, pGB->uID, hWnd);
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InvalidateRect(hWnd, NULL, TRUE);
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UpdateWindow(hWnd);
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return TRUE;
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}
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/*
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* GBGizmoSendMessage
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*
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* Purpose:
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* Implements the equivalent of SendMessage to a gizmo in the
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* GizmoBar. Separators, command buttons, and attribute buttons
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* do not accept messages.
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*
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* Parameters:
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* hWnd HWND of the GizmoBar.
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* uID UINT identifier of the gizmo to affect.
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* iMsg UINT message to send.
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* wParam WPARAM of the message.
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* lParam LPARAM of the message.
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*
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* Return Value:
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* LRESULT Return value from the message. 0L if the
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* gizmo does not accept messages.
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*/
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LRESULT WINAPI GBGizmoSendMessage(HWND hWnd, UINT uID, UINT iMsg
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, WPARAM wParam, LPARAM lParam)
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{
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LPGIZMO pGizmo;
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LONG lRet=0L;
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pGizmo=PGizmoFromHwndID(hWnd, uID);
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if (NULL!=pGizmo && NULL!=pGizmo->hWnd)
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lRet=SendMessage(pGizmo->hWnd, iMsg, wParam, lParam);
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return lRet;
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}
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/*
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* GBGizmoShow
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*
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* Purpose:
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* Shows or hides a control, adjusting the positions of all others
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* to make room for or reuse the space for this control.
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*
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* Parameters:
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* hWnd HWND of the GizmoBar.
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* uID UINT identifier of the gizmo to affect.
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* fShow BOOL TRUE to show the gizmo, FALSE to hide it.
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*
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* Return Value:
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* BOOL TRUE if the function was successful, FALSE otherwise.
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*/
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BOOL WINAPI GBGizmoShow(HWND hWnd, UINT uID, BOOL fShow)
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{
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BOOL fRet=FALSE;
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LPGIZMO pGizmo;
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pGizmo=PGizmoFromHwndID(hWnd, uID);
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if (NULL!=pGizmo)
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{
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if (fShow && pGizmo->fHidden)
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{
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if (NULL!=pGizmo->hWnd)
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ShowWindow(pGizmo->hWnd, SW_SHOWNORMAL);
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GizmosExpand(pGizmo);
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}
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if (!fShow && !pGizmo->fHidden)
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{
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if (NULL!=pGizmo->hWnd)
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ShowWindow(pGizmo->hWnd, SW_HIDE);
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GizmosCompact(pGizmo);
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}
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//This will be right even if we didn't change anything.
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pGizmo->fHidden=!fShow;
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}
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InvalidateRect(hWnd, NULL, TRUE);
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UpdateWindow(hWnd);
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return fRet;
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}
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/*
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* GBGizmoEnable
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*
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* Purpose:
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* Enables or disables a control on the GizmoBar.
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*
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* Parameters:
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* hWnd HWND of the GizmoBar.
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* uID UINT identifier of the gizmo to affect.
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* fEnable BOOL TRUE to enable the gizmo, FALSE otherwise.
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*
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* Return Value:
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* BOOL TRUE if the gizmo was previously disabled, FALSE
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* otherwise.
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*/
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BOOL WINAPI GBGizmoEnable(HWND hWnd, UINT uID, BOOL fEnable)
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{
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LPGIZMO pGizmo;
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BOOL fRet=FALSE;
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pGizmo=PGizmoFromHwndID(hWnd, uID);
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if (NULL==pGizmo)
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return FALSE;
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fRet=(BOOL)(BUTTONGROUP_DISABLED & pGizmo->uState);
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//Use windows to enable or disable window gizmos
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if (NULL!=pGizmo->hWnd)
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EnableWindow(pGizmo->hWnd, fEnable);
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else
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{
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//If we're not down, command and attribute buttons act the same.
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if (!(BUTTONGROUP_DOWN & pGizmo->uState))
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GizmoPStateSet(hWnd, pGizmo, fEnable ? COMMANDBUTTON_UP : COMMANDBUTTON_DISABLED);
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else
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{
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//Attribute buttons are a little more sensitive with DOWNDISABLED
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GizmoPStateSet(hWnd, pGizmo
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, fEnable ? ATTRIBUTEBUTTON_DOWN : ATTRIBUTEBUTTON_DOWNDISABLED);
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}
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}
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return fRet;
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}
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/*
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* GBGizmoCheck
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*
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* Purpose:
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* Checks or unchecks an attribute button in the GizmoBar. If the
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* gizmo is part of a group of mutually exclusive attributes, then
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* other gizmos are unchecked when this one is checked. If this is
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* the only one checked in these circumstances, this function is a NOP.
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*
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* Parameters:
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* hWnd HWND of the GizmoBar.
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* uID UINT identifier of the gizmo to affect.
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* fCheck BOOL TRUE to check this gizmo, FALSE to uncheck.
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*
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* Return Value:
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* BOOL TRUE if the change took place. FALSE otherwise.
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*/
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BOOL WINAPI GBGizmoCheck(HWND hWnd, UINT uID, BOOL fCheck)
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{
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LPGIZMOBAR pGB;
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LPGIZMO pGizmo;
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if (!IsWindow(hWnd))
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return FALSE;
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pGB=(LPGIZMOBAR)GetWindowLong(hWnd, GBWL_STRUCTURE);
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if (NULL==pGB)
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return FALSE;
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pGizmo=GizmoPFind(&pGB->pGizmos, uID);
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if (NULL!=pGizmo)
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GizmoPCheck(hWnd, pGizmo, fCheck);
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return TRUE;
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}
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/*
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* GBGizmoFocusSet
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*
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* Purpose:
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* Sets the focus to a partuclar gizmo in the gizmo if that gizmo
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* can accept the focus. Separators, attribute buttons, text,
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* and command buttons cannot have the focus.
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*
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* Parameters:
|
|
* hWnd HWND of the GizmoBar.
|
|
* uID UINT identifier of the gizmo to affect.
|
|
*
|
|
* Return Value:
|
|
* BOOL TRUE if the focus was set. FALSE otherwise, such as
|
|
* when uID identifies a control that cannot have focus.
|
|
*/
|
|
|
|
UINT WINAPI GBGizmoFocusSet(HWND hWnd, UINT uID)
|
|
{
|
|
LPGIZMO pGizmo;
|
|
BOOL fRet=FALSE;
|
|
|
|
pGizmo=PGizmoFromHwndID(hWnd, uID);
|
|
|
|
if (NULL!=pGizmo && NULL!=pGizmo->hWnd)
|
|
{
|
|
fRet=TRUE;
|
|
SetFocus(pGizmo->hWnd);
|
|
}
|
|
|
|
return fRet;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* GBGizmoExist
|
|
*
|
|
* Purpose:
|
|
* Determines if a gizmo of a given identifier exists in the GizmoBar.
|
|
*
|
|
* Parameters:
|
|
* hWnd HWND of the GizmoBar.
|
|
* uID UINT identifier to verify.
|
|
*
|
|
* Return Value:
|
|
* BOOL TRUE if the gizmo exists, FALSE otherwise.
|
|
*/
|
|
|
|
BOOL WINAPI GBGizmoExist(HWND hWnd, UINT uID)
|
|
{
|
|
return (NULL!=PGizmoFromHwndID(hWnd, uID));
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* GBGizmoTypeGet
|
|
*
|
|
* Purpose:
|
|
* Returns the type of the gizmo specified by the given identifer.
|
|
*
|
|
* Parameters:
|
|
* hWnd HWND of the GizmoBar.
|
|
* uID UINT identifier to find.
|
|
*
|
|
* Return Value:
|
|
* int A GIZMOTYPE_* value if the function is successful,
|
|
* otherwise -1.
|
|
*/
|
|
|
|
int WINAPI GBGizmoTypeGet(HWND hWnd, UINT uID)
|
|
{
|
|
int iRet=-1;
|
|
LPGIZMO pGizmo;
|
|
|
|
pGizmo=PGizmoFromHwndID(hWnd, uID);
|
|
|
|
if (NULL!=pGizmo)
|
|
iRet=pGizmo->iType;
|
|
|
|
return iRet;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* GBGizmoDataSet
|
|
* GBGizmoDataGet
|
|
*
|
|
* Purpose:
|
|
* Sets or retrieves an extra DWORD value associated with the given gizmo.
|
|
* Applications can store any information here they please.
|
|
*
|
|
* Parameters:
|
|
* hWnd HWND of the GizmoBar.
|
|
* uID UINT identifier of the gizmo.
|
|
* dwData (Set only) DWORD data to store with the gizmo.
|
|
*
|
|
* Return Value:
|
|
* DWORD Set: Previous value
|
|
* Get: Current value
|
|
*/
|
|
|
|
DWORD WINAPI GBGizmoDataSet(HWND hWnd, UINT uID, DWORD dwData)
|
|
{
|
|
LPGIZMO pGizmo;
|
|
DWORD dw=0L;
|
|
|
|
pGizmo=PGizmoFromHwndID(hWnd, uID);
|
|
|
|
if (NULL!=pGizmo)
|
|
{
|
|
dw=pGizmo->dwData;
|
|
pGizmo->dwData=dwData;
|
|
}
|
|
|
|
return dw;
|
|
}
|
|
|
|
|
|
|
|
DWORD WINAPI GBGizmoDataGet(HWND hWnd, UINT uID)
|
|
{
|
|
LPGIZMO pGizmo;
|
|
DWORD dw=0L;
|
|
|
|
pGizmo=PGizmoFromHwndID(hWnd, uID);
|
|
|
|
if (NULL!=pGizmo)
|
|
dw=pGizmo->dwData;
|
|
|
|
return dw;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* GBGizmoNotifySet
|
|
* GBGizmoNotifyGet
|
|
*
|
|
* Purpose:
|
|
* Sets or retrieves the notify status of a gizmo. If notify is FALSE,
|
|
* the no WM_COMMAND messages are sent from the GizmoBar to the parent
|
|
* window when this gizmo is used.
|
|
*
|
|
* Parameters:
|
|
* hWnd HWND of the GizmoBar.
|
|
* uID UINT identifier of the gizmo.
|
|
* fNotify (Set only) BOOL new notify status to set.
|
|
*
|
|
* Return Value:
|
|
* BOOL Set: Previous value of the notify flag.
|
|
* Get: Current value of the notify flag.
|
|
*/
|
|
|
|
BOOL WINAPI GBGizmoNotifySet(HWND hWnd, UINT uID, BOOL fNotify)
|
|
{
|
|
LPGIZMO pGizmo;
|
|
BOOL fRet=FALSE;
|
|
|
|
pGizmo=PGizmoFromHwndID(hWnd, uID);
|
|
|
|
if (NULL!=pGizmo)
|
|
{
|
|
fRet=pGizmo->fNotify;
|
|
pGizmo->fNotify=fNotify;
|
|
}
|
|
|
|
return fRet;
|
|
}
|
|
|
|
|
|
BOOL WINAPI GBGizmoNotifyGet(HWND hWnd, UINT uID)
|
|
{
|
|
LPGIZMO pGizmo;
|
|
BOOL fRet=FALSE;
|
|
|
|
pGizmo=PGizmoFromHwndID(hWnd, uID);
|
|
|
|
if (NULL!=pGizmo)
|
|
fRet=pGizmo->fNotify;
|
|
|
|
return fRet;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* GBGizmoTextSet
|
|
* GBGizmoTextGet
|
|
*
|
|
* Purpose:
|
|
* Retrieves or sets text in a GizmoBar gizmo. Separators, command buttons,
|
|
* and attribute buttons are not affected by this call.
|
|
*
|
|
* Parameters:
|
|
* hWnd HWND of the GizmoBar.
|
|
* uID UINT identifying the gizmo.
|
|
* psz LPTSTR (Set) providing the text to show in the window
|
|
* or (Get) pointing to a buffer to receive the text.
|
|
* cch (Get only) UINT maximum number of chars to copy to psz.
|
|
*
|
|
* Return Value:
|
|
* int Number of characters copied to psz.
|
|
*/
|
|
|
|
void WINAPI GBGizmoTextSet(HWND hWnd, UINT uID, LPTSTR psz)
|
|
{
|
|
//This fails on non-windowed gizmos anyway, so we don't check.
|
|
SetDlgItemText(hWnd, uID, psz);
|
|
return;
|
|
}
|
|
|
|
|
|
int WINAPI GBGizmoTextGet(HWND hWnd, UINT uID, LPTSTR psz, UINT cch)
|
|
{
|
|
//This fails on non-windowed gizmos anyway, so we don't check.
|
|
return GetDlgItemText(hWnd, uID, psz, cch);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
* GBGizmoIntSet
|
|
* GBGizmoIntGet
|
|
*
|
|
* Purpose:
|
|
* Retrieves or sets an integer in a GizmoBar gizmo. Separators, command
|
|
* buttons, and attribute buttons are not affected by this call.
|
|
*
|
|
* Parameters:
|
|
* hWnd HWND of the GizmoBar.
|
|
* uID UINT identifying the gizmo.
|
|
*
|
|
* (Set only)
|
|
* u UINT value to set in the gizmo.
|
|
* fSigned BOOL TRUE to indicate if the value is signed.
|
|
*
|
|
* (Get only)
|
|
* pfTrans BOOL FAR * in which the success of the function is returned.
|
|
* fSigned BOOL TRUE to indicate if the value is signed.
|
|
*
|
|
* Return Value:
|
|
* (Set): None
|
|
* (Get): UINT Integer translation of the gizmo's text.
|
|
*/
|
|
|
|
void WINAPI GBGizmoIntSet(HWND hWnd, UINT uID, UINT u, BOOL fSigned)
|
|
{
|
|
//This fails on non-windowed gizmos anyway, so we don't check.
|
|
SetDlgItemInt(hWnd, uID, u, fSigned);
|
|
return;
|
|
}
|
|
|
|
|
|
|
|
UINT WINAPI GBGizmoIntGet(HWND hWnd, UINT uID, BOOL FAR *pfTrans, BOOL fSigned)
|
|
{
|
|
//This fails on non-windowed gizmos anyway, so we don't check.
|
|
return GetDlgItemInt(hWnd, uID, pfTrans, fSigned);
|
|
}
|