Converts an LBitmapBase objects bitmap into a Windows device dependent bitmap (DDB). When this function is completed, there are two copies of the image in memory: the DDB and the original LEAD bitmap. Freeing one will not affect the other.
#include "ltwrappr.h"
virtual HBITMAP LBitmapBase::ConvertToDDB(hDC)
Handle to the device responsible for the conversion. The mapping mode of the device context must be MM_TEXT.
This function returns a handle to the DDB, or it returns a NULL if there is an error.
This function allocates a DDB bitmap and copies the LBitmapBase objects bitmap to the DDB. When you no longer need the DIB, you can free it using the Windows DeleteObject function.
Win32, x64.
L_INT LBitmapBase__ConvertToDDBExample()
{
L_INT nRet;
LBitmapBase MyBitmap,Bitmap2;
HDC hDC=GetDC(0);
HBITMAP hBitmap;
nRet =MyBitmap.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp")));
if(nRet !=SUCCESS)
return nRet;
hBitmap=MyBitmap.ConvertToDDB(hDC);
nRet =Bitmap2.ConvertFromDDB(hDC, hBitmap, 0);
if(nRet !=SUCCESS)
return nRet;
ReleaseDC(0,hDC);
return SUCCESS;
}
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