- 371 名前：デフォルトの名無しさん mailto:sage [2008/06/18(水) 17:25:33 ]
- >>360
遅レスすみません、漸く解りました。
ありがとうございます。
(WM_PAINT以外)
hBmp = (HBITMAP)LoadImage(NULL, L"test.bmp", IMAGE_BITMAP, 640, 480, LR_LOADFROMFILE);
HDC hDC = GetDC(hwnd);
hMemDC = CreateCompatibleDC(hDC);
SelectObject(hMemDC, hBmp);
hBackDC = CreateCompatibleDC(hMemDC);
hBackBmp = CreateCompatibleBitmap(hMemDC, 256, 192);
hPrevBmp = SelectObject(hBackDC, hBackBmp);
SetStretchBltMode(hBackDC, STRETCH_HALFTONE))
StretchBlt(hBackDC, 0, 0, 256, 192, hMemDC, 0, 0, 640, 480, SRCCOPY);
ReleaseDC(hwnd, hDC);
(WM_PAINT内)
BeginPaint(hwnd, &ps);
HBITMAP hTempBmp = (HBITMAP)SelectObject(hBackDC, hPrevBmp);
SendDlgItemMessage(hwnd, IDC_BITMAP1, STM_SETIMAGE, (WPARAM)IMAGE_BITMAP, (LPARAM)hBackBmp);
SelectObject(hBackDC, hTempBmp);
EndPaint(hwnd, &ps);
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