Source code of Windows XP (NT5)
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Windows Entertainment Package About Dialog Box Dynamic Link Library===================================================================
HOW TO USE THE WEP ABOUTDLG DLL*******************************
1. In the ".def" file include the line:
IMPORTS AboutWEP=AboutWEP.2
2. Declare the function in your main ".c" file or a ".h" file:
void FAR PASCAL AboutWEP(HWND, HICON, LPSTR, LPSTR);
3. Add an "About..." menu item (to the Help Menu)
4. Handle the menu item:
in the MainWndProc
case WM_SYSCOMMAND: if (wParam == IDM_ABOUT) AboutWEP(hwndMain, hIconMain, "game name", "by developer"); else ...
If you don't have an icon or don't want to show a credits line, pass NULL for that parameter.
I usually have an icon included in my ".rc" file:
ID_ICON_MAIN ICON generic.ico
and load it only when needed by replacing the variable hIconMain with
LoadIcon(hInst, MAKEINTRESOURCE(ID_ICON_MAIN))
The file "aboutwep.dll" should be in the main windows directory.
IMPLEMENTATION NOTES********************
The Bitmap is displayed in color only on a VGA.An EGA system will display the black & white version and be a bit taller.
The bitmap is implemented as a button because- it is easy to draw- we may want to do something if the user clicks on the logo- I couldn't get a static user-drawn item to work
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