有谁知道如何获取Mac和Windwos浏览器窗口的位图?我想在渲染时从Chrome或FireFox中捕获图像并将它们传递到基于C ++的插件中。
我已经考虑过使用Chrome扩展程序,但这不实用。
愿意购买Mac和Windows原生应用。
答案 0 :(得分:1)
使用Windows API,您可以轻松获取屏幕截图。
// get the device context of the screen
HDC hScreenDC = CreateDC("DISPLAY", NULL, NULL, NULL);
// and a device context to put it in
HDC hMemoryDC = CreateCompatibleDC(hScreenDC);
int width = GetDeviceCaps(hScreenDC, HORZRES);
int height = GetDeviceCaps(hScreenDC, VERTRES);
// maybe worth checking these are positive values
HBITMAP hBitmap = CreateCompatibleBitmap(hScreenDC, width, height);
// get a new bitmap
HBITMAP hOldBitmap = SelectObject(hMemoryDC, hBitmap);
BitBlt(hMemoryDC, 0, 0, width, height, hScreenDC, 0, 0, SRCCOPY);
hBitmap = SelectObject(hMemoryDC, hOldBitmap);
// clean up
DeleteDC(hMemoryDC);
DeleteDC(hScreenDC);
// now your image is held in hBitmap. You can save it or do whatever with it
我不确定浏览器的确切区域,或者如何为Mac解决它。如果不出意外,它就是一个开始。