nanogui: How to load a bitmap?
Subject:
Re: [nanogui] How to load a bitmap?
From:
"Uwe Klatt" ####@####.####
Date:
24 Jan 2007 11:51:50 +0000
Message-Id: <001501c73fad$f2058a90$081710ac@arnstein.miwe.de>
Hello,
> I'm using Microwindow with Win32 Api; I cannot figure out how is
> possible to load a bitmap and show it in my window (at x,y position)
> in a similar way provided by GrLoadImageFormFile() for those who use
> Nano-X api.
I am using something like this:
void DrawImage(HWND hWnd, HDC hdc, int x, int y, int dx, int dy, char
*filename)
{
HDC hdcMem;
HBITMAP hbmp, hbmpOrg;
PMWIMAGEHDR image;
int image_id;
image_id = GdLoadImageFromFile(hdc->psd,filename,0);
hdcMem = CreateCompatibleDC(hdc);
image = (PMWIMAGEHDR)GdGetImage(image_id);
hbmp = CreateCompatibleBitmap(hdcMem, image->width, image->height);
hbmpOrg = SelectObject(hdcMem, hbmp);
DrawDIB(hdcMem, 0, 0, image);
StretchBlt(hdc, x, y, dx, dy, hdcMem, 0, 0, image->width-1,
image->height-1,
MWROP_SRCCOPY);
DeleteObject(SelectObject(hdcMem, hbmpOrg));
DeleteDC(hdcMem);
GdFreeImage(image_id);
return;
}
Bye
Uwe
