java winapi.kernel32_Java WinDef.RECT属性代码示例

public static boolean drawIcon(BufferedImage ret, WinDef.HICON hIcon, int diFlags) {

WinDef.HDC hdcScreen = User32.INSTANCE.GetDC(null);

WinDef.HDC hdcMem = Gdi32.INSTANCE.CreateCompatibleDC(hdcScreen);

WinDef.HBITMAP bitmap = Gdi32.INSTANCE.CreateCompatibleBitmap(hdcScreen, ret.getWidth(), ret.getHeight());

WinNT.HANDLE hbmOld = Gdi32.INSTANCE.SelectObject(hdcMem, bitmap);

WinNT.HANDLE hBrush = Gdi32.INSTANCE.CreateSolidBrush(new WinDef.DWORD(0xffffff));

WinDef.RECT rect = new WinDef.RECT();

rect.left = 0;

rect.top = 0;

rect.right = ret.getWidth();

rect.bottom = ret.getHeight();

User32.INSTANCE.FillRect(hdcMem, rect, hBrush);

Gdi32.INSTANCE.DeleteObject(hBrush);

boolean ok = User32.INSTANCE.DrawIconEx(hdcMem, 0, 0, hIcon, ret.getWidth(), ret.getHeight(), new WinDef.UINT(0), new WinDef.HBRUSH(Pointer.NULL), diFlags);

if (!ok) {

return false;

}

for (int x = 0; x < ret.getWidth(); x++) {

for (int y = 0; y < ret.getHeight(); y++) {

int rgb = Gdi32.INSTANCE.GetPixel(hdcMem, x, y).intValue();

int r = (rgb >> 16) & 0xff;

int g = (rgb >> 8) & 0xff;

int b = (rgb) & 0xff;

rgb = (b << 16) + (g << 8) + r;

ret.setRGB(x, y, rgb);

}

}

Gdi32.INSTANCE.SelectObject(hdcMem, hbmOld);

Gdi32.INSTANCE.DeleteObject(bitmap);

Gdi32.INSTANCE.DeleteDC(hdcMem);

User32.INSTANCE.ReleaseDC(null, hdcScreen);

return true;

}