L_UseBitmapClass

#include "l_bitmap.h"

L_VOID EXT_FUNCTION L_UseBitmapClass(L_VOID)

Dynamically loads the appropriate DLL to let your program use the L_BITMAPCLASS registered class.

Returns

None.

Comments

Because the L_BITMAPCLASS registered class uses messages rather than function calls, the required dynamic link library (LTWND14n.dll or LTWND12w.dll) is not loaded automatically. Therefore, the toolkit provides this dummy function in the DLL, which you can call before using the registered class messages.

Required DLLs and Libraries

Platforms

Windows 95 / 98 / Me, Windows 2000 / XP.

See Also

Example

/* This example demonstrates programming basics for the LEAD registered class. */
int PASCAL WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                     LPSTR lpCmdLine, int nCmdShow)
{
   MSG msg;                     /* Message structure, See Windows SDK for more information. */
   HWND hwnd;                   /* Handle to the application window */
   LEADBITMAPLOAD LoadStruct;   /* Structure for the name of the DLL */
   UNREFERENCED_PARAMETER (hPrevInstance);
   L_UseBitmapClass ();
   /* Create a normal overlapped window with scroll bars and automatic window
      sizing when a bitmap is loaded.  */
   hwnd = CreateWindow (L_BITMAPCLASS,
                        TEXT("L_BITMAPCLASS Registered Class Example"),
                        WS_OVERLAPPEDWINDOW |
                        WS_CLIPCHILDREN |
                        WS_VSCROLL |
                        WS_HSCROLL |
                        L_BS_THUMBTRACK |
                        L_BS_SIZEWINDOW,
                        0,
                        0,
                        CW_USEDEFAULT,
                        CW_USEDEFAULT,
                        NULL,
                        NULL,
                        hInstance,
                        NULL);
   ShowWindow (hwnd, nCmdShow);
   /* Load the bitmap and force screen update  */
#ifdef WIN32
   memset (&LoadStruct, 0, sizeof (LoadStruct));
#else
   _fmemset (&LoadStruct, 0, sizeof (LoadStruct));
#endif
   LoadStruct.uStructSize = sizeof (LoadStruct);
   lstrcpy (LoadStruct.Name, TEXT("IMAGE3.CMP")); /* Get the name of the image file */
   SendMessage (hwnd,
                L_BM_LOAD,      /* Send the message to load the image */
                TRUE,
                (LONG) (LPSTR) & LoadStruct);
   /* Normal message loop. The L_BITMAPCLASS window procedure will post 
   a WM_QUIT message if there is not a parent. Such as in this case...  */
   while (GetMessage (&msg, NULL, 0, 0))
   {
      TranslateMessage (&msg);
      DispatchMessage (&msg);
   }
   return (0);
}