Drawing ID2D1Image on specified rectangle like DrawBitmap()

Question

I can do this with ID2D1Bitmap:

   D2D1_SIZE_F clientSize = d2dDeviceContext->GetSize();  
     
   d2dDeviceContext->DrawBitmap(  
     d2dBitmap,  
     D2D1::RectF(100, 0, clientSize.width, clientSize.height)  
   );  

But not with ID2D1Image. All ID2D1DeviceContext::DrawImage() methods only accept image rectangle, not the destination rectangle, which causes cropped image in the client area instead of drawing on the specified rect in the client area.

Is there any equivalent method to the DrawBitmap() above with DrawImage()?

Note that I only had ID2D1Image, using it with DrawBitmap() is impossible.

Edit: Maybe, the only possible way is to convert ID2D1Image to ID2D1Bitmap, but how?

Answer 1

Hello @thebluetropics ,
Welcome to Microsoft Q&A!

About the way about convert ID2D1Image to ID2D1Bitmap.

You can refer to the workaround in StackOverflow: https://stackoverflow.com/questions/31118397/direct2d-convert-id2d1image-to-id2d1bitmap.

Thank you.
Junjie

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Answer 2

There is the D2D1::Point2F parameter + eventually D2D1_RECT_F

For example in this test, I display with DrawImage the original image at default location, then with GaussianBlur at D2D1::Point2F(300, 0)
(with D2D1_RECT_F at image size, that can be resized with Scale effect) :