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getprivateprofilestring

时间: 2023-09-24 07:06:07 浏览: 90

The GetPrivateProfileString function is a Windows API function used to retrieve a string value from a section of an INI file. It takes four parameters: 1. lpAppName - The name of the section in the INI file that contains the string to retrieve. 2. lpKeyName - The name of the key whose associated string value is to be retrieved. 3. lpDefault - A default string value to return if the key or section cannot be found. 4. lpReturnedString - A buffer to receive the retrieved string value. The function returns the length of the retrieved string, or zero if the key or section cannot be found. If the buffer specified in lpReturnedString is not large enough to hold the entire string, the function returns the length of the truncated string. Here's an example usage of the GetPrivateProfileString function in C++: ```c++ char buffer[256]; GetPrivateProfileString("Settings", "Username", "defaultuser", buffer, 256, "config.ini"); ``` This code retrieves the value of the "Username" key in the "Settings" section of the "config.ini" file. If the key is not found, the function returns the default value "defaultuser". The retrieved string is stored in the buffer variable.

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