CODEWITHSUNDEEP
winapigdijna
Amin Arab
Amin Arab

Reputation: 530

how to find type of GDI

i am beginner in win 32 api . i try use win 32 api for create an onscreen keyboard . I can give handle of window and components by click but how to realize type of these and i want set text only on text box and editable components

i try to use GetWindowInfo() and try use atomWindowType of window for realize type of that but this is not use full for this goal because this change on each restart of OS.

(click is handle of window)

WINDOWINFO pwi = new WINDOWINFO(); USER32INST.GetWindowInfo(click, pwi); if (pwi.atomWindowType != -15891) { setLastclick(click); } tnx

Upvotes: 0

Views: 401

Answers (1)

David Heffernan
David Heffernan

Reputation: 612954

You are not going to be able to achieve what you desire, in full generality it is not realistically possible.

A window's type (or class) is essentially determined by its WndProc. You can use GetClassName and its ilk to help you identify some standard window classes, but as you have already discovered, most real-world apps will not use these standard classes.

So, although in theory, you could analyse the code behind the WndProc at runtime, in practice this is not remotely feasible.

Upvotes: 1

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