Finding correct window handle

Hello,

I am trying to work out the correct way to print out a list of child windows (and child of child windows etc). So far I have done a few tests on the Windows Notepad program by using:

Code:

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#include <windows.h>
.....
hwnd1 = FindWindow(NULL, "Untitled - Notepad");
hwnd2 = GetWindow(hwnd1, GW_CHILD);

---

which gets the main text box window.

Could someone help me work out how to do a similar thing for more complex programs which have multiple child windows or sub-child windows.

Thanks,
Chris

Yes, the EnumWindows function is tailor made for that task.

You pass a callback function to it, in which you can simply call EnumChildWindows on all the window handles you get.


Here's something I was playing with a long time ago, I'll just post it as is, so it might have a few errors, but it still demonstrates its use. The purpose of it was to find a notepad window and type the message in it using SendMessage.

Code:

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#include <windows.h>
#include <stdio.h>

char message[] = "\n\nI can see you.\n\nI herd u like mudkipz.\n\n .. Is dat right?\n";

BOOL CALLBACK EnumChildProc(HWND hWnd, LPARAM lParam)
{
    char buffer[100] = {0};
    unsigned int i = 0;
   
    if(!hWnd)  return TRUE;
   
    if(GetClassName(hWnd, buffer, 100) == 0) return TRUE;
   
    printf(" - %s\n", buffer);
   
    /*for(i = 0; i < strlen(message); i++)
    {
          SendMessage(hWnd, WM_CHAR, message[i], 0);
         
          sleep(200);
    }*/
   

   
    memset(buffer, 0, 100);
}


BOOL CALLBACK EnumWindowsProc(HWND hWnd, LPARAM lParam)
{
    char buffer[100] = {0};
    int i = 0;
    if(!hWnd) return TRUE;
   
   
    if(GetWindowText(hWnd, buffer, 100) == 0) return TRUE;
   
   
   
    printf("Child windows for '%s':\n", buffer);
    //SetForegroundWindow(hWnd);             
    EnumChildWindows(hWnd, EnumChildProc, 0);
   
   
             
   
   

    memset(buffer, 0, 100);
}


int main(void)
{
   
    //ShellExecute(NULL, "open", "notepad.exe", NULL, "C:\\Windows", SW_SHOW);
   
    sleep(500);
    EnumWindows(EnumWindowsProc, 0);
   
   
   
}

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