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how to catch switching tabs in MDI tabbed application?
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See more: MFCMDI
The perfect example is Microsoft's own MDITabsDemo app.
All I want to know when user switches from one tab to another.
Thanks.
Posted 16 Jun '12 - 8:34
Member 8835355339
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Comments
SAKryukov - 16 Jun '12 - 23:32
Not a question, and not clear what is your concern. There are many way the user selects tabs, but how is this related to the code you want to write? --SA

2 solutions

WM_NCACTIVATE[^] looks like a possibility. If you still cannot find out then get a copy of Spy++ which can trace all the messages for you.
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Posted 17 Jun '12 - 0:58
Richard MacCutchan295K
I tried WM_NCACTIVATE and some to no avail.
I decided to override OnCmdMsg and finally caught it. Message id is 0x0363 which is above 0x0360 = WM_AFXFIRST. This message is allocated to MFC.
OnCmdMsg gets an avalanche of hits (messages) and I have to monitor an active tab and if it differ from the last one.
I've been hoping somebody with an intimate knowledge of MFC internals helps me to process this message efficiently, and, particularly, the meaning of nID and nCode.
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Posted 18 Jun '12 - 4:44
Member 8835355339
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