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Perhaps the &quot;button&quot; you are trying to click is not really a button at all but another type of control that just looks like a button.<br />
<br />
You could try sending WM_LBUTTONDOWN followed by WM_LBUTTONUP.<br />
<br />
&nbsp; &nbsp; private const UInt32 WM_LBUTTONDOWN = 0x201;<br />
&nbsp; &nbsp; private const UInt32 WM_LBUTTONUP = 0x202;<br />

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Perhaps the "button" you are trying to click is not really a button at all but another type of control that just looks like a button.

You could try sending WM_LBUTTONDOWN followed by WM_LBUTTONUP.

    private const UInt32 WM_LBUTTONDOWN = 0x201;
    private const UInt32 WM_LBUTTONUP = 0x202;


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Idle Mind,<br />
Thanks for your reply. That still doesn't work, and it's definitely a button (WindowsForms10.BUTTON.app<wbr />3). I have observed all the messages sent to the button when i actually click it, and even replicated them (to the letter) but the application refuses to accept the click.<br />
<br />
Interestingly, that code does work on a non .NET app? and also on a textbox in the same app, just not on the button... :o(<br />
<br />
Do you have any other ideas?<br />
<br />
Cheers again,<br />
James.
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Idle Mind,
Thanks for your reply. That still doesn't work, and it's definitely a button (WindowsForms10.BUTTON.app3). I have observed all the messages sent to the button when i actually click it, and even replicated them (to the letter) but the application refuses to accept the click.

Interestingly, that code does work on a non .NET app? and also on a textbox in the same app, just not on the button... :o(

Do you have any other ideas?

Cheers again,
James.

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Idle,<br />
It is now working?! Weird. BM_CLICK doesn't work, but LBUTTONDOWN LBUTTONUP works if i put a small delay in (100ms).<br />
<br />
The points are yours - thanks for your help,<br />
James.
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Idle,
It is now working?! Weird. BM_CLICK doesn't work, but LBUTTONDOWN LBUTTONUP works if i put a small delay in (100ms).

The points are yours - thanks for your help,
James.

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Hello experts!<br />
I am having problems clicking a button in another application. I have tried using SendMessage, and even though i see the message arrive at the button in Spy++, it does not respond?!<br />
<br />
Thankyou in advance,<br />
James.
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Hello experts!
I am having problems clicking a button in another application. I have tried using SendMessage, and even though i see the message arrive at the button in Spy++, it does not respond?!

Thankyou in advance,
James.

Problem with BM_CLICK

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).