係Windows拖拽或者縮放窗口, 會造成窗體閃爍, 啟用象筋拖放, 即係非實時拖放,可避免窗體閃爍.
| 進入像筋拖放 |
| SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, true, &drag_full_windows, NULL); |
| 退出像筋拖放 |
| SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, false, &drag_full_windows, NULL); |
通過監聽『WM_ENTERSIZEMOVE』進入拖拽, 『WM_EXITSIZEMOVE』退出像筋拖拽, 實施像筋象筋拖放
| LRESULT CALLBACK WindowProc(HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam){ |
| if (msg == WM_ENTERSIZEMOVE)
SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, true, &drag_full_windows, NULL);// 進入像筋拖放 else |
| if (msg == WM_EXITSIZEMOVE)
SystemParametersInfo(SPI_SETDRAGFULLWINDOWS, false, &drag_full_windows, NULL);// 退出像筋拖放 |
| return(DefWindowProc(hWnd, msg, wParam, lParam));
} |