Solved

pressing buttons

Posted on 2000-03-19
13
250 Views
Last Modified: 2010-04-04
Is there a simple piece of code that enables you to press buttons on external applications. I have looked around and found different solutions, but none seem to work. So any ideas?

I currently use findwindow to get the window handle. the findwindowex to get the button handle and i have tried
sendmessage(handle,WM_KEYDOWN,13,0) then key up but this doesn't work
0
Comment
Question by:frangers99
  • 4
  • 3
  • 2
  • +3
13 Comments
 
LVL 17

Expert Comment

by:inthe
ID: 2633965
hi,
you can do this to press the buuton where handle is its handle gotten via findwindow:

sendmessage(handle,WM_LBUTTONDOWN,0,0);
sendmessage(handle,WM_LBUTTONUP,0,0);

(that is telling the buuton the mouse clicked it)
Regards Barry
0
 
LVL 1

Expert Comment

by:X_Kalibur
ID: 2634469
howdy,

actually, inthe's answer is a tad over the top....i'm doing the exact some thing for a program i'm working on right now..
this will do the exact same thing as inthe's answer, but it does it in one line:

sendmessage(YOUR_HANDLE, BM_CLICK, 0, 0);

hth,

x
0
 
LVL 17

Expert Comment

by:inthe
ID: 2634823
mmm.
wouldnt really call 2 lines over the top .. ;-)
0
Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

 
LVL 7

Expert Comment

by:ahalya
ID: 2634939
I didn't know that
sendmessage(YOUR_HANDLE, BM_CLICK, 0, 0);  would work.

I have been using
PostMessage( WindowHandle,
                      wm_Command,
                      DlgID, {of Button},
                      MakeLong(GetDlgItem(WHandle, DlgID), BN_Clicked));
all these days.
0
 

Author Comment

by:frangers99
ID: 2635065
Ok you're both right, but what do you do if the window that's popping up is showmodal (ie, the button has to be pressed before the next instruction of your code is run) what happens then? I tried both pieces of code and they don't work with showmodal forms (such as dialog boxes).

Thanks both of you for your help. But this final helper will have me set.
0
 
LVL 9

Expert Comment

by:ITugay
ID: 2635151
Are you asked about external application?

Cheers
Igor.
0
 
LVL 1

Expert Comment

by:X_Kalibur
ID: 2635656
ooh..

this is interesting...i have never tried to automatically press dialog buttons...

there are several programs which do this (eg: Buzz Orf)

is there a "GetDialogWindow" APi call?? ;-P~

-x

0
 
LVL 7

Expert Comment

by:ahalya
ID: 2636400
well, you can use a timer to do that. e.g.

Timer1.Interval := Whatever;
Timer1.Enabled := true;
YourForm.ShowModal;
....


//and in your Timer1.Timer event
Timer1.Enabled := false;
WindowHandle := FindWindow(ClassName, Caption);
BtnHandle := GetDlgItem(WHandle, DlgID);

PostMessage( WindowHandle, wm_Command,  DlgID,
                        MakeLong(BtnHandle , BN_Clicked));

0
 
LVL 2

Expert Comment

by:alexstewart@beta
ID: 2637903
You might try this function
....
mouse_event
....
my reading of the help file suggests this will do what you want. (use the absolute coords)
there is also a
keybd_event
if you are pressing defaul buttons this will work too.
The target app should be set active.

Alex
0
 
LVL 17

Accepted Solution

by:
inthe earned 50 total points
ID: 2638017
or this:

if the button has a caption of 'Yes' with the Y has a underline for instance
it is '&Yes' (maybe you know ..
anyway you can do this:

var WName : Array[0..99] of Char;
    HH : THandle;

//Search Childs
Function TWCallBackChild(H : THandle; V : Longint) : Bool; stdcall;
begin
  GetwindowText(H,@WName[0],100);
  if StrPas(@WName[0]) = '&Yes' then
    HH := H;
  Result := True;
end;

//search Parents
Function TWCallBack(H : THandle; V : Longint) : Bool; stdcall;
begin
  GetwindowText(H,@WName[0],100);
  if StrPas(@WName[0]) = '&Yes' then
  begin
    HH := H;
  end
  else
    EnumChildWindows(H,@TWCallBackChild,V);
  Result := True;
end;

procedure TForm1.Button1Click(Sender: TObject);
var Dummy : Longint;
begin
  HH := 0;
  EnumWindows(@TWCallBack,Dummy);  //Search through the windows
  if HH <> 0 then  //if found then press
  begin
    setforegroundwindow(hh);
sendmessage(HH,bm_click,0,0);//x_calibar
  end;
end;

end.

an example is open notepad and type something thenpress the x in corner to close notepad it asks to save "yes" "no" "cancel" buttons..
run the code above and it will press the '&Yes' button ..
0
 

Author Comment

by:frangers99
ID: 2641842
Adjusted points from 30 to 50
0
 

Author Comment

by:frangers99
ID: 2641843
Barry I am going to try your answer sorry for the showmodal trouble but i'm gonna boost the points up 20 and i'll try this code this arvo and if it's right, which i'm sure it will be then you got yourself the points
0
 

Author Comment

by:frangers99
ID: 2646496
sorry to change the question a little but both solutions are excellent, thanks to everybody who contributed
0

Featured Post

Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Simple Delphi Question 9 88
Connection between libmysql.dll and MySQL Versions 7 96
How to renew a Delphi rad-studio licence? 5 63
Find and Replace Stream with 0s 8 60
In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…

816 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now