How to draw ARGB bitmap using GDI+?

Question

I have valid HBITMAP handle of ARGB type. How to draw it using GDI+?

I\'ve tried method: graphics.DrawImage(Bitmap::FromHBITMAP(m_hBitmap, NULL), 0, 0); But it doesn

Answer 1

I've got working sample:

// 1. Get info using bitmap handle: image size, bits
BITMAP bmpInfo;
::GetObject(m_hBitmap, sizeof(BITMAP), &bmpInfo);
int cxBitmap = bmpInfo.bmWidth;
int cyBitmap = bmpInfo.bmHeight;
void* bits = bmpInfo.bmBits;

// 2. Create & draw new GDI+ bitmap using bits with pixel format PixelFormat32bppARGB
Gdiplus::Graphics graphics(dcMemory);
Gdiplus::Bitmap bitmap(cxBitmap, cyBitmap, cxBitmap*4, PixelFormat32bppARGB, (BYTE*)bits);
graphics.DrawImage(&bitmap, 0, 0);