Date: 02-16-2022
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created by gbSnippets
#define STRICT
#include <windows.h>
#include <windowsx.h>
#include <ole2.h>
#include <commctrl.h>
#include <shlwapi.h>
#include <stdio.h>
#include <dwmapi.h>
HINSTANCE g_hinst; /* This application�s HINSTANCE */
HWND g_hwndChild; /* Optional child window */
HTHUMBNAIL g_hthumb;
BOOL
OnCreate(HWND hwnd, LPCREATESTRUCT lpcs)
{
DWM_THUMBNAIL_PROPERTIES props = {};
HWND hwndTarget;
if (sscanf(reinterpret_cast<PCSTR>(lpcs->lpCreateParams),
�%p %ld %ld %ld %ld�, &hwndTarget,
&props.rcSource.left, &props.rcSource.top,
&props.rcSource.right, &props.rcSource.bottom) == 5) {
DwmRegisterThumbnail(hwnd, hwndTarget, &g_hthumb);
props.dwFlags = DWM_TNP_VISIBLE | DWM_TNP_RECTSOURCE |
DWM_TNP_RECTDESTINATION;
props.rcDestination = props.rcSource;
OffsetRect(&props.rcSource,
-props.rcSource.left, -props.rcSource.top);
props.fVisible = TRUE;
DwmUpdateThumbnailProperties(g_hthumb, &props);
}
return TRUE;
}
void
OnDestroy(HWND hwnd)
{
if (g_hthumb) DwmUnregisterThumbnail(g_hthumb);
PostQuitMessage(0);
}
int WINAPI WinMain(HINSTANCE hinst, HINSTANCE hinstPrev,
LPSTR lpCmdLine, int nShowCmd)
{
�
hwnd = CreateWindow(
�Scratch�, /* Class Name */
�Scratch�, /* Title */
WS_OVERLAPPEDWINDOW, /* Style */
CW_USEDEFAULT, CW_USEDEFAULT, /* Position */
CW_USEDEFAULT, CW_USEDEFAULT, /* Size */
NULL, /* Parent */
NULL, /* No menu */
hinst, /* Instance */
lpCmdLine);
�
}
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