Loading a bitmap from resource

Hi:
I have a bitmap in the resource which I can load into memory using the Windows API calls like:

HBITMAP thumbLoad = NULL;
thumbLoad = LoadBitmap(ImageEditorInstance, "ThumbLoad");

How can I convert this to TLEADImage (VCL). I am willing to use the LeadTools API calls if I have to.
I am using version 14.0

Thank you
Sam

Hello,

The bitmap returned by the Windows API LoadBitmap function is a Device Dependent Bitmap. You should be able to assign it to a LEAD bitmap using the Main VCL SetDDB function.

Thanks,
Maen Badwan
LEADTOOLS Technical Support

Is there a DIB version of LoadBitmap that I can use?

ok here is what I did:

HANDLE tBmpHandle;

tBmpHandle = LoadImage(MainInstance, "TestBmp", IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION | LR_MONOCHROME);
try
{
Image->SetDIB((unsigned int)tBmpHandle);
}
__finally
{
DeleteObject(tBmpHandle);
}

But I get "SetDIB:Invalid parameter passed." error.

Thank you
Sam

Hello,

Are you sure that the tBmpHandle contains valid image data?
Also, if declare the tBmpHandle as THandle and pass it as follows, do you get the same problem?
Image->SetDIB(tBmpHandle)

Thanks,
Maen Badwan
LEADTOOLS Technical Support

As you can see in the attached test project, the bitmap is valid and using THandle will not have any effect.

Hello,

The SetDIB function requires an HGLOBAL. One way to load the resource and set it is:
HRSRC pResrce = FindResource(NULL, "TestBmp", RT_BITMAP);
int n=SizeofResource(NULL, pResrce);
HGLOBAL hResBitmap = GlobalAlloc(0, n);
void *p=GlobalLock(hResBitmap);
memcpy(p, LoadResource(NULL,pResrce), n);
GlobalUnlock(hResBitmap);
LEADImage1->SetDIB((unsigned int)hResBitmap);
GlobalFree(hResBitmap);

Thanks,
Maen Badwan
LEADTOOLS Technical Support