VC++: How do I change a bitmap during the programs execution?

[zsouthboy]

http://www.tek-tips.com/gfaqs.cfm/lev2/4/lev3/29/pid/116/fid/1473

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I tried this, but all i get is "error C2440: 'type cast' : cannot convert from 'class CStatic' to 'unsigned short'"

Uh... it specifically says to use CStatic... what am i doing wrong?

 

[singh]

Here's an example supposing that you have a dialog with a static bitmap control with the id IDC_STATIC_BITMAP. To load a bitmap with the ID IDB_BITMAP2 into the control, you would use code like this:


CStatic* pStatic = reinterpret_cast<CStatic*>(GetDlgItem(IDC_STATIC_BITMAP));
pStatic->SetBitmap(LoadBitmap(AfxGetResourceHandle(), MAKEINTRESOURCE(IDB_BITMAP2)));

 

[zsouthboy]

I should have been more specific... I am changing the bitmap of a button, and it does not work when i substitute the control ID for the button in place of the static bitmap control thing..

when the button gets pressed, i will change the bitmap again...


argh... none of my books i have go into depth about bitmaps anyway...

 

[singh]

Originally posted by: zsouthboy
I should have been more specific... I am changing the bitmap of a button, and it does not work when i substitute the control ID for the button in place of the static bitmap control thing..

when the button gets pressed, i will change the bitmap again...

Try this then (button with ID IDC_MY_BUTTON_ID):

CButton* pButton = reinterpret_cast<CButton*>(GetDlgItem(IDC_MY_BUTTON_ID));
pButton->SetBitmap(LoadBitmap(AfxGetResourceHandle(), MAKEINTRESOURCE(IDB_MY_BITMAP_ID)));

 

[zsouthboy]

Nope.... simply does nothing when i try that.. the button stays blank...

i guess i should just use pictures instead of buttons, eh? (clicking on pictures instead of buttons to change them)

 

[singh]

Originally posted by: zsouthboy
Nope.... simply does nothing when i try that.. the button stays blank...

i guess i should just use pictures instead of buttons, eh? (clicking on pictures instead of buttons to change them)

Did you create the button with a 'bitmap' style?