Display image code below
CRect rect;
SubmitPicture. GetClientRect (& amp; The rect);
CImage image;
Image. The Load (the result - & gt; PIC);
The CDC * pDC=PrintPicture. GetWindowDC ();
Image. The Draw (pDC - & gt; M_hDC, the rect);

SetStretchBltMode (pDC - & gt; M_hDC, COLORONCOLOR);

The ReleaseDC (pDC);
Run here will error

CodePudding user response:

Assertion point here ATLASSUME (m_hBitmap!=NULL)

CodePudding user response:

CodePudding user response:

 
CRect rect; 
SubmitPicture. GetClientRect (& amp; The rect); 
CImage image; 
Image. The Load (the result - & gt; PIC); 
The CDC * pDC=PrintPicture. GetWindowDC (); 
Image. The Draw (pDC - & gt; M_hDC, the rect); 

SetStretchBltMode (pDC - & gt; M_hDC, COLORONCOLOR); 

The ReleaseDC (pDC); 

CodePudding user response:

Should be the images are not loading is successful, may be a routing problem

Should determine whether load success
If (image. The Load (the result - & gt; PIC)==S_OK)
{
Image. The Draw
}

Or
if(! Image. The IsNull ())
{
Image. The Draw
}

CodePudding user response:

The breakpoint look at the image is valid

CodePudding user response:

reference 4 floor zgl7903 response:

should be the images are not loading is successful, may be a routing problem

Should determine whether load success
If (image. The Load (the result - & gt; PIC)==S_OK)
{
Image. The Draw
}

Or
if(! Image. The IsNull ())
{
Image. The Draw
}

Why the path might be a problem?

CodePudding user response:

Thank you for your attention, the problem has been solved,