Image Refresh problem

[deepsheep]

I seem to be having a problem with refreshing an Image control. After a button is pushed, I load a Bitmap into an image control. However, it doesn't seem to want to refresh and display the freshly loaded bitmap. If I minimize the applicaion and then bring it up again(or bring another window on top), the Bitmap is displayed.

I've tried the following, together and individually and in many combinations:
Image1->Repaint();
Image1->Invalidate();
Image1->Refresh();
Form1->Invalidate();
Form1->Repaint();
Form1->Refresh();

I can't seem to find an answer on the Internet. I'd appreaciate any help.
Thanks!

 

[itsgsd]

Seems pretty strange, I haven't had any trouble loading and displaying bitmaps. Post the code in your button's OnClick event where you're loading the bitmap, maybe someone can spot something.

 

[deepsheep]

I agree, it is pretty strange. I thought it could be that the processesing was taking a long time, but when I put a breakpoint at the end of the event, it was there quite quickly (but with no refresh). Once a refresh is forced by forcing the form to repaint, it displays correctly. The other controls seem to work fine. I've tried putting the refresh code into a separate refresh button as well.
Here you go:

Image1->Picture->LoadFromFile("C:\\Files\\blank.bmp") ;
Image1->Canvas->Font->Size=18;
//Ticket
Image1->Canvas->TextOutA (1200,170,Invoice.ticket) ;
//DAte
Image1->Canvas->TextOutA(1200,220,Invoice.date) ;
// A few more pieces of text here
//This is where I was trying to refresh
// Form1->Refresh(); etc....

Image1->Picture->SaveToFile("C:\\Files\\Test2.bmp") ;

Thanks!

 

[itsgsd]

I looked at and tried your code, it worked fine for me. There must be something else going on. I tried it in Builder 6 and 2006. I think I remembered from another of your posts that you are in Builder 5, it's possible there's something unique there, but I doubt it. Maybe someone else has an idea?

 

[Prattaratt]

What might be happening is he might be trying to textout to an area outside the imagebox. try using the Height and Width properties of Image1->Picture to establish extents and see if that doesn't help.

The simplest solution is the best!

 

[deepsheep]

I haven't been able to figure the cause out, but I've made a successful work around. Once the image is generated and saved, I bring up another form with the picture. It works fairly well, I can even have the image larger so it's easier to see.
If I figure out the cause, I'll post back.

Thanks for all your help.

 

[ctoma2005]

I'm thinking you could try tu download the latest drivers for your display adapter...I had some probplems with image refreshing until I updated my driver...it's just a hunch