Labels:text | menu | document OCR: Application Components And Their Portability Issues FIGURE 2 Component Examples Some Portability Concerns Operating-System Components Memory Management malloc Allocate, free memory free Memory segment boundary size Simple pointer or handle approach Simple 1/0 Services fopen Open/Read/Write capabilities fread Number of simultaneous open files fwrite Directory searching Path/File information Directory separators (/ or V) Timers Number of timers available Timer resolution Windowing-System Components Images and Colors Pixmaps Handling different display types XAllocColor Portable image formats Color capabilities of target platforms Fonts XLoadQueryFont Target platform font capabilities XFontStruct Handling nonexistent fonts Display Resolution Fitting or resizing of windows on the target platform Geometry Management GUI-object size and placement based on different display resolution or font availability Drawing Functions XDrawLine Target platform drawing capabilities Graphics Contexts Handling graphics states, contexts Clipboard Exchange Primary, Secondary Hot-key support Selections Printing Support Postscript or native print-driver support Continued Next Page
