[win32api] Save BITMAP to file

[mekkatorqu]

I have this code to capture whole screen as bitmap, how do I save it to file? I've been trying to find solution for over a hour, can't find anything working

void TakeSnapshot(string directory)
{
	RECT rc;
	HWND hWnd2 = GetDesktopWindow();
	GetClientRect(hWnd2, &rc);
	HDC hScreenDC = CreateDC("DISPLAY", NULL, NULL, NULL);
	HDC hMemoryDC = CreateCompatibleDC(hScreenDC);

	HBITMAP hBitmap = CreateCompatibleBitmap(hScreenDC, rc.right, rc.bottom);
	
	SelectObject(hMemoryDC, hBitmap);

	BitBlt(hMemoryDC, 0, 0, rc.right, rc.bottom, GetDC(0), 0, 0, SRCCOPY);
	string a = "\\";
	stringstream ss;
	char b[8];
	ss << NOScreen;
	ss >> b;
	a += b;
	a += ".bmp";
	directory += a;
	NOScreen++;

	DeleteDC(hMemoryDC);
	DeleteDC(hScreenDC);
}

[mekkatorqu]

someone?

[coder777]

Look at this:

http://www.codeproject.com/Articles/9140/Saving-a-Drawing-to-a-Bitmap-File

Especially void CDrawing2BitmapDlg::OnSave()

it shows how to do that

[mekkatorqu]

im using plain win32 api (look at the title), not mfc

[coder777]

mfc is not far from plain api.

In the OnSave() the mfc stuff is not relevant. You can remove it.
The remaining code shows how to save a BITMAP struct to a file. Just take a closer look.