asked on

showing a dialog by using FindWindowEX

First of all... srry about the points. This is all I have :(

2 apps

the first app have:

Form Title: "my 1st app"
dialog name: "my dialog 1" (dialogEx)

the second app have a button "call the dialog from app 1"

now...

In app 2 I want to find the app1 handle and its dialog handle and then open the dialog from the app2.

is that possible ?

wnd := FindWindow(nil, 'my 1st app');
wnd := FindWindowEx(wnd, 0, '????????',nil); < -- I really don't know how it works
...

ty in advance

LMuadDIb

procedure TForm1.Button1Click(Sender: TObject);
var
h,openDialog:hwnd;
begin
h := FindWindow(nil,'my 1st app');
if h <> 0 then begin// if we found notepad
openDialog := FindWindowEx(h, 0, 'TButton', nil);
sendmessage(openDialog,WM_LButtonDown,0,0);
sendmessage(openDialog,WM_LButtonUp,0,0);
end else
ShowMessage('not found.');
end;

If you had a button on your first app that would open a dialog than you can simulate the buttonclick, shown above.
I dont know if its possible to open a dialog window without using a menuitem/button/action or similiar control.

Syntax:}

FindWindowEx(Parent: HWND; {a handle to a parent window}
Child: HWND; {a handle to a child window}
ClassName: PChar; {a pointer to a null-terminated class name string}
WindowName: PChar {a pointer to a null-terminated window name string}
): HWND; {returns a handle to a window}

ASKER CERTIFIED SOLUTION

LMuadDIb

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

furmiga

ASKER

Thats why i gave the name of the dialog "my dialog 1" wich is a EX dialog

I really don't know if I have to use the FindWindowEX since the Dialog is hidden and there is nothing phisical to open it ( I mean, if i start the program with a param -menu then the MainMenu is visible wich allow me to open the "my dialog 1" ).

Now, if I start the program without the param, is there any chance to open the main menu or just call the dialog ?.

They exist so I was wondering if i can force them to show