c++ Picture set Image

Hi!

The 'm_pic1' is a CStatic. But I will try it with the type "SS_BITMAP". I think I selected something like "_Control".

I have no time to test it at the moment. Can you post a code snippet where I can see how the Image/Bitmap is set to the Picture Control with CBitmap::Detach()?

Many thanks!
Tipsybroom

Hi,

here a short code snippet about detaching the bitmap:

> CBitmap bmp;
> bmp.LoadBitmap( ... );
> m_pic1.SetBitmap( bmp.Detach() );

Hope that helps,

ZOPPO

If you dragged the dialog object from "_Control" in Visual Studio you might have inadvertently dragged in a VB Picture Control (that is, a COM object that supports IPicture, LPPICTUREDISP, and OleLoadPIcture).  This is a true ActiveX COM control, a very different beast than a COMCTL32 common control.

Try re-dragging the object from the toolbar, this time selecting from the VS control toolbar using the icon in the upper-right corner (looks like a cactus and sun).  After you drag it into place, right-click on it and select Properties.  In the Type dropbox select Bitmap to set SS_BITMAP in the .rc file.

Hello again,

now i´ve tried your code sample without any success.
maybe i am to stupid to leave the console based programming in C++ ;-)

what i´ve done is the following:

CBitmap bmp;
bmp.LoadBitmap("accept.ico");
m_pic1.SetBitmap( bmp.Detach() );

the icon is in the Debugpath and should be found.
i had setup the picture control from type: Border (don´t know if it called border in the english ide. in german it´s called Rahmen) to type: Bitmap. i have tried Type Symbol of also.

another way i´ve tried is this:

HINSTANCE hInstance = AfxGetInstanceHandle();
HANDLE hImage = LoadImage( hInstance , "accept.ico", IMAGE_BITMAP, 596, 331, LR_LOADFROMFILE);

with also no succes.

is there any way to load the icon from the resources?
or must it be a file?

Thank you

Hi,

you cannot load an icon from a 'ico' file with CBitmap::LoadBitmap - to load an icon from a 'ico' file you'll have to do like in your second try but set the 'uType' paramter of 'LoadImage' to IMAGE_ICON instead of IMAGE_BITMAP. Or another possibility would be to add the icon to the resources and load it from there.

Further you should set the static control's style to SS_ICON.

Even it may be a good idea to check the return values of the function 'LoadImage' (NULL if an error occurs).

ZOPPO

Addition, just for info: The function CBitmap::LoadBitmap can only be used to load a bitmap from the applications resources - it can't be used to load an image/icon from a file.

ZOPPO

now I load the handle into the picture control...

      HINSTANCE hInstance = AfxGetInstanceHandle();
      HANDLE hImage = LoadImage( hInstance , "accept.ico", IMAGE_ICON, 596, 331, LR_LOADFROMFILE);
      
      
      m_pic1.SetBitmap(hImage);

i ve got an error that there is no conversion from void * to struct HBITMAP possible.
what can I do?
shoul i convert it or is there an override function of setBitmap?

thank you

Hi,

you just have to cast 'hImage' to be a HBITMAP, like this:

> m_pic1.SetBitmap( (HBITMAP)hImage );

ZOPPO

thanks...

i´ve tried with no success! the icon isn´t schown in the picture control.
what could be wrong?

maybe the style is wrong?

in the german ide i could´t find the style ss_icon??

right click on the control... properties... and there is type... set type to icon and it is shown like a icon on the form.
i think that is the style right?

Hm - I re-read about SetBitmap in MSDN and it seems this can only be used for CStatic with style SS_BITMAP, not with SS_ICON (this is what you set when selecting 'Icon' in the properties).

Unfortunateley a bitmap is a different thing as an icon.

I see two 'simple' solutions:
1. put the icon into the resources. Then you can set the CStatic's text to the resource ID of the icon.
2. convert your .ico file into a bitmap, i.e. a .bmp file, set the CStatic's type to 'bitmap' and use code similar to the above.

Another possibility would be to draw the icon yourself - for this you can add a WM_PAINT handler to the dialog and use 'CDC::DrawIcon'; for this I'd suggest to load the icon once when the dialog is initialized instead of loading it every time the WM_PAINT handler is called - for the positioning of the icon you can even use a static control; just give it a resource ID (i.e. IDC_STATIC_ICON) and uncheck it's 'Visible' property.

Then in the WM_PAINT handler you can use 'GetDlgItem' and 'GetWindowRect' to retrieve the position where to draw the icon.

ZOPPO

the icon should be changed by code.

could i Change the CStatic´s text by cod?

Yes, but this won't change anything - the text is used to load the icon from resources when the control is created/initialized, so changing the text won't affect the shown icon.

But, there's a 'CStatic::SetIcon' function - combined with the SS_ICON style (type 'Icon') this should work too ...

ZOPPO

now i´ve tried the SetIcon function.

m_pic1.SetIcon((HICON)IDI_ICON1);

no error, but nothing to see at run.

it works!

thank you!

i hate c++ since yesterday ;)