Thread: loading images to a picture box

i was trying to load a bmp image to a picture box control, using the windows api, but i couldn't find anything on how to do that. Could someone explain it to me? I was also wondering if i could load jpeg and png images, too.

i appreciate your suggestions, but i'm not asking about Qt or another framework.

-i have been working on win32 for weeks now and think its what i have been looking for. But if you insist that Qt is a better choice, i'll take a look at it.-

now do you have an answer for my first question?

thanks for your reply. do you know a way to load jpeg images too?

why does everyone think win32 is pain? isn't it flexible enough to allow doing anything the windows OS allows? or is there another reason? and what does "being portable" mean?

and thanks C_ntua, you seem to be the only one who has answered my question

and can i use opengl and directx with frameworks?

thanks for the explanation.

but i'm still waiting for someone who knows win32 and is able to answer the main question

Originally Posted by new_in_c++

i was trying to load a bmp image to a picture box control, using the windows api, but i couldn't find anything on how to do that. Could someone explain it to me? I was also wondering if i could load jpeg and png images, too.

Forger has most of the information on his guide, theForger's Win32 API Tutorial

I kinda went the resource/macro route which i kinda regret cause there's EXTREMELY little documentation on this and different compilers allow different tricks and blah, but the good part is that you can easily construct your resource files using programs such like ResEdit (or if you have VisualStudio use whatever it uses), anyhow here's some code to manage images and controls though resource/.rc file,

slimcore.c (where you catch window events and draw/call/display window)

Code:

/*----------------------------------------------------------*\
    Slim TestCore v0.8 (just to get things rollin')
    LastUpd: 2011-03-11
   CFGnotes: Link "comctl32" and include resource file.

    Credits: Julien Audo (.cpp & ResEdit)
    URL/NFO: http://www.codeproject.com/KB/cpp/resedit.aspx
             http://www.resedit.net
\*----------------------------------------------------------*/

#include <windows.h>
#include <commctrl.h>

// Ah damnit! I was wacking it around and accidently hit the top so it just exploded all over me!
BOOL CALLBACK AppDlgProc(HWND hDlg,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
   switch(uMsg)
   {
      case WM_INITDIALOG:
      {
         SetClassLongPtr(hDlg,GCLP_HICON,(long)LoadIcon(0,IDI_APPLICATION));
         return 1;
      }

      case WM_COMMAND:
      {
          switch(wParam)
          {
              case IDCANCEL: EndDialog(hDlg, 0);
          }
      }
   }
   return 0;
}

// Damn ketchup bottles!
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
   InitCommonControls();
   DialogBoxParam(hInstance,(LPCTSTR)50,0,AppDlgProc,0);
   return 0;
}

simpleresource.rc (where you construct the visual parts)

Code:

// A simple Resource file
#include <windows.h>

#ifndef IDC_STATIC
  #define IDC_STATIC (-1)
#endif

LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL

// Bitmap
70 BITMAP ".//location//of//your//bitmap.bmp"

// Dialog
50 DIALOG 0, 0, 186, 95 STYLE DS_CENTER | DS_MODALFRAME | WS_POPUP FONT 8, "Ms Shell Dlg"
{ // if the compiler throws syntax-error replace "{" with "BEGIN"
   CONTROL 70, IDC_STATIC, WC_STATIC, SS_BITMAP, 52, 20, 77, 41 // image/control
   PUSHBUTTON "Exit", IDCANCEL, 150, 40, 35, 15                 // A close button, program will also listen to "ESC"
} // if the compiler throws syntax-error replace "}" with "END"

Hope you're not too confused, otherwise "theForger's" =)