change combo box value by user32 through labview

[TCchsh]

I want to call external exe.when i use user32.dll, i can find combo box handle,but i dont know how to change this value,how to solve it?

[wiebe@CARYA]

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@TCchsh wrote:

I want to call external exe.when i use user32.dll, i can find combo box handle,but i dont know how to change this value,how to solve it?

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This is a bit vague...

Is the exe a LabVIEW application? If so, user32.dll won't get you far.

If not (likely, as you found a handle), you probably need to send the handle a message. Use SendMessage, PostMessage, or something like that.

See SendMessage ComboBox ? (microsoft.com)

I hope you don't really have a choice, as this is probably the last thing you want to do. But that does happen.