XpmMisc(3)

💖 XpmMisc — the cleanup crew of libXpm 💖

okay bestie, welcome to XpmMisc(3) from the libXpm functions era ✨ this is the page for all the little helpers that free your memory and explain your errors, and honestly? they're the unsung heroes. no cap.

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🌸 NAME 🌸

XpmMisc — xpm misc functions to free used memory and handle errors

like... the janitor AND the translator of the XPM world 🧹🗣️

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✨ SYNOPSIS ✨

int XpmFreeXpmImage(XpmImage *image);

int XpmFreeXpmInfo(XpmInfo *info);

int XpmFreeAttributes(XpmAttributes *attributes);

int XpmAttributesSize(void);

int XpmFreeExtensions(XpmExtension *extensions,  int nextensions);

int XpmFree(char *ptr);

char *XpmGetErrorString(int errorcode);

int XpmLibraryVersion(void);

look at all those little cleanup functions, they're giving responsible adult energy 💅

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🎀 ARGUMENTS 🎀

• image — the structure you wanna free, bestie. that's the one.
• info — the structure to free. yeah. this one too.
• ptr — the data to free 🫶
• errorcode — specifies the XPM error, so we can translate it into something readable
• extensions — specifies the array to free
• nextensions — the number of extensions in that array, don't lose count girl
• attributes — the structure to free

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💜 DESCRIPTION 💜

To free possible data stored into an XpmImage structure, use XpmFreeXpmImage(). The XpmFreeXpmImage() function frees the structure members which are not NULL, but not the structure itself. so like… it empties the bag but doesn't throw the bag away, iykyk 👜

To free possible data stored into an XpmInfo structure, use XpmFreeXpmInfo().

To free data possibly stored into an array of XpmExtension, use XpmFreeExtensions().

To free any data allocated by an XPM function, use the XpmFree() function. The current distribution of the XPM library uses the standard memory allocation functions, and thus XpmFree() is nothing else than a define to the standard free(3). However, since these functions may be redefined in specific environments, it is wise to use XpmFree(). it's giving "same thing but with better manners" 🎀

To free possible data stored into an XpmAttributes structure, use XpmFreeAttributes(). The XpmFreeAttributes() function frees the structure members which have been malloc'ed, such as the pixels list. the pixels list!! she's the main character here 👑

To dynamically allocate an XpmAttributes structure, use the XpmAttributesSize() function. The XpmAttributesSize() function provides applications using dynamic libraries with a safe way to allocate and then refer to an XpmAttributes structure, disregarding whether the XpmAttributes structure size has changed or not since compiled. it's the "idk how big this got but I got you" function, fr fr 🫶

To get data when building an error message, one can use XpmGetErrorString(). XpmGetErrorString() returns a string related to the given XPM error code. so when something goes wrong, she'll tell you what went wrong 💀➡️😌

The XpmLibraryVersion() function can be used when one needs to figure out which version of the library is in use. The value returned by XpmLibraryVersion() can be compared to the value of XpmIncludeVersion which is defined in the header file "xpm.h". These numbers are computed with the following formula:

 (XpmFormat * 100 + XpmVersion) * 100 + XpmRevision

where XpmFormat is the version number of the format, XpmVersion is the library version number (which changes only if the API changes), and XpmRevision is the library minor version number. math girlies rise up, this is a whole vibe check on your library 🌈

The XpmFreeExtensions() function frees all data stored in every extension and the array itself. Note that XpmFreeAttributes() calls this function, and thus most of the time it should not need to be explicitly called. she's already handled, bestie, put your hand down 🙈

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🦋 SEE ALSO 🦋

• XpmCreateBuffer(3)
• XpmCreateData(3)
• XpmCreateImage(3)
• XpmCreatePixmap(3)
• XpmCreateXpmImage(3)
• XpmRead(3)
• XpmWrite(3)

go read those too, they're all part of the squad 💖

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⭐ and that's the whole page ⭐

this was XpmMisc(3) from X Version 11, libXpm 3.5.17 — aka the version that's living in your system rn, slay 💅✨

free your memory, read your error strings, and always, always check your library version. periodt 🎀🫶💜