DialogBoxParam problem

**publikum** · 08-13-2005

I'm trying to open a Dialog and send a parameter (ID for SQL query) with it, but I just don't know how to read it.

Calling dialog:

Code:

 
DialogBoxParam(GetModuleHandle(NULL), MAKEINTRESOURCE(IDD_SKUPINE_PRIKAZ), hwnd, GroupsShowDlgProc, (LPARAM)tmp_i);

Here's how i'm trying to read parameter:

Code:

 
BOOL CALLBACK GroupsShowDlgProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
 switch(message)
 {   
  case WM_INITDIALOG:
   MessageBox(hwnd, (const char*)HIWORD(lParam), "Test", MB_OK);

Any ideas?

**Dante Shamest** · 08-13-2005

Is the HIWORD() necessary?

**publikum** · 08-13-2005

Without HIWORD() program crashes, but with HIWORD() returns empty string...

**Dante Shamest** · 08-13-2005

Is tmp_i a pointer to a c-string?

**publikum** · 08-13-2005

That's it

It has to be const char* to work!

Thanks for help!!!

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