如何使用BITMAPV5HEADER标头创建位图？

Question

这是我当前的代码，但它会导致铸造BITMAPINFOHEADER时的错误：

/* Create the bitmap */ 
BITMAPINFO bmpinfo; 
ZeroMemory(&bmpinfo, sizeof(bmpinfo)); 
BITMAPV5HEADER bmpheader; 
ZeroMemory(&bmpheader, sizeof(bmpheader)); 
bmpheader.bV5Size = sizeof(BITMAPV5HEADER); 
bmpheader.bV5Width = width; 
bmpheader.bV5Height = height; 
bmpheader.bV5Planes = 1; 
bmpheader.bV5BitCount = 32; 
bmpheader.bV5Compression = BI_BITFIELDS; 
bmpheader.bV5SizeImage = width*height*4; 
bmpheader.bV5RedMask = 0x00FF0000; 
bmpheader.bV5GreenMask = 0x0000FF00; 
bmpheader.bV5BlueMask = 0x000000FF; 
bmpheader.bV5AlphaMask = 0xFF000000; 
bmpheader.bV5CSType = 0x57696e20; // LCS_WINDOWS_COLOR_SPACE 
bmpheader.bV5Intent = LCS_GM_BUSINESS; 
bmpinfo.bmiHeader = reinterpret_cast<BITMAPINFOHEADER>(bmpheader); 
void* converted = NULL; 
HDC screen = GetDC(NULL); 
HBITMAP result = CreateDIBSection(screen, &bmpinfo, DIB_RGB_COLORS, &converted, NULL, 0); 
ReleaseDC(NULL, screen); 
// Image data filled here 

我如何能够成功地做到这一点？

Answer 1

BITMAPINFO不是一个真正的结构，它更多的只是关于颜色贴图如何跟随标题的文档。只需直接通过您的BITMAPV5HEADER到CreateDIBSection：

HBITMAP result = CreateDIBSection(screen, reinterpret_cast<BITMAPINFO *>(&bmpheader), DIB_RGB_COLORS, &converted, NULL, 0);