我正在尝试实现双缓冲,但它似乎不起作用,即图形仍然闪烁。
每次鼠标移动时都会调用 WM_PAINT。(WM_MOUSEMOVE)
在下面粘贴 WM_PAINT:
case WM_PAINT:
{
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
RECT rect;
GetClientRect(hWnd, &rect);
int width=rect.right;
int height=rect.bottom;
HDC backbuffDC = CreateCompatibleDC(hdc);
HBITMAP backbuffer = CreateCompatibleBitmap( hdc, width, height);
int savedDC = SaveDC(backbuffDC);
SelectObject( backbuffDC, backbuffer );
HBRUSH hBrush = CreateSolidBrush(RGB(255,255,255));
FillRect(backbuffDC,&rect,hBrush);
DeleteObject(hBrush);
if(fileImport)
{
importFile(backbuffDC);
}
if(renderWiredCube)
{
wireframeCube(backbuffDC);
}
if(renderColoredCube)
{
renderColorCube(backbuffDC);
}
BitBlt(hdc,0,0,width,height,backbuffDC,0,0,SRCCOPY);
RestoreDC(backbuffDC,savedDC);
DeleteObject(backbuffer);
DeleteDC(backbuffDC);
EndPaint(hWnd, &ps);
}