Windows Client development-enable the client to remember the size and location of the last Shutdown (win32 application)

Windows Client development-enable the client to remember the size and location of the last Shutdown (win32 application)

Previously, I wrote a blog on how to store the windowplacement struct in MFC. We use the write-in registry.

In win32 application, you also try to write information to the registration area.

However, I am getting more and more confused, so I should write the. ini file, write and read the self-defined. ini file, instead of writing win. ini.

Reading and writing. ini files is an old problem.

But now we want to write a struct. How can we do this?
The data we read is also stored in a struct. How can this problem be solved?

Yes, windows provides us with APIs:
WritePrivateProfileStruct
GetPrivateProfileStruct

First, obtain the structure of windowplacement:

WINDOWPLACEMENT wp;GetWindowPlacement(this->GetHWND(), &wp);

Next, write the configuration file:

WritePrivateProfileStruct(L"Main", L"WP", &wp, sizeof(wp), L"D:\\123.ini");

Note that we can use the return value of the WritePrivateProfileStruct function to determine whether it is true or false.

After the write is successful, let's take a look at 123.ini

[Main]WP=2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0A02000062000000B60500007A030000C3

The next task is also very easy, that is, how to read the configuration file to the struct:

WINDOWPLACEMENT wp;GetPrivateProfileStruct(L"Main", L"WP", &wp, sizeof(wp), L"D:\\123.ini");SetWindowPlacement(this->GetHWND(), &wp);

In this way, the windows client will record the window size at the time of last exit.