change time frame mt4 scripts do not work on windows 11.

[george pitcher]

Code that works on win 10 fails on win 11. Is there a simple fix?

Thanks for the help, George

Change Time Frames all charts

//+------------------------------------------------------------------+
//| ChangeTF-All.mq4 |
//| Copyright   2010, zznbrm |
//+------------------------------------------------------------------+
#property copyright "Copyright   2010, zznbrm"
#property show_inputs
#import "user32.dll"
int PostMessageA(int hWnd,int Msg,int wParam,int lParam);
int GetWindow(int hWnd,int uCmd);
int GetParent(int hWnd);
#import
#define GW_HWNDFIRST 0
#define GW_HWNDNEXT 2
#define WM_COMMAND 0x0111
extern int eintTF = PERIOD_D1;

int start()
{
bool blnContinue = true;
int intParent = GetParent( WindowHandle( Symbol(), Period() ) );
int intChild = GetWindow( intParent, GW_HWNDFIRST );
int intCmd;

switch( eintTF )
{
case PERIOD_M1: intCmd = 33137; break;
case PERIOD_M5: intCmd = 33138; break;
case PERIOD_M15: intCmd = 33139; break;
case PERIOD_M30: intCmd = 33140; break;
case PERIOD_H1: intCmd = 35400; break;
case PERIOD_H4: intCmd = 33136; break;
case PERIOD_D1: intCmd = 33134; break;
case PERIOD_W1: intCmd = 33141; break;
case PERIOD_MN1: intCmd = 33334; break;
}

// if ( intChild > 0 )
// {
// if ( intChild != intParent ) PostMessageA( intChild, WM_COMMAND, intCmd, 0 );
// }
// else blnContinue = false;

// while( blnContinue )
// {
// intChild = GetWindow( intChild, GW_HWNDNEXT );

// if ( intChild > 99 )
// {
// if ( intChild != intParent ) PostMessageA( intChild, WM_COMMAND, intCmd, 0 );
// }
// else blnContinue = false;
// }

// Now do the current window
PostMessageA( intParent, WM_COMMAND, intCmd, 0 );
}