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scrutil
Slightly more advanced due to the nature of the command line, the free utility called screenutil gets the job done immediately with a quick entry into the Terminal.
Launch Terminal and drag and drop scrutil into the command line to use it once, but if plan on using it often it’s a good idea to toss scrutil into /usr/local/bin for easy future access. Once installed, changing the retina display to native 2880×1800 with screenutil is achieved with the following command example:
scrutil s 2880 1800 16
The command will report back the resolution change, the 16 at the end is color depth so you can set that to something else if you’d like. You can set it back to the default resolution either through System Preferences or with scrutil s 1440 900.
C'è anche questo:
link
/*
* COMPILE:
* c++ setgetscreenres.m -framework ApplicationServices -o setgetscreenres
* USE:
* setgetscreenres 1440 900
*/
#include <ApplicationServices/ApplicationServices.h>
bool MyDisplaySwitchToMode (CGDirectDisplayID display, CFDictionaryRef mode);
int main (int argc, const char * argv[])
{
int h; // horizontal resolution
int v; // vertical resolution
CFDictionaryRef switchMode; // mode to switch to
CGDirectDisplayID mainDisplay; // ID of main display
CFDictionaryRef CGDisplayCurrentMode(CGDirectDisplayID display);
if (argc == 1) {
CGRect screenFrame = CGDisplayBounds(kCGDirectMainDisplay);
CGSize screenSize = screenFrame.size;
printf("%d %d\n", screenSize.width, screenSize.height);
return 0;
}
if (argc != 3 || !(h = atoi(argv[1])) || !(v = atoi(argv[2])) ) {
fprintf(stderr, "ERROR: Use %s horres vertres\n", argv[0]);
return -1;
}
mainDisplay = CGMainDisplayID();
switchMode = CGDisplayBestModeForParameters(mainDisplay, 32, h, v, NULL);
if (! MyDisplaySwitchToMode(mainDisplay, switchMode)) {
fprintf(stderr, "Error changing resolution to %d %d\n", h, v);
return 1;
}
return 0;
}
bool MyDisplaySwitchToMode (CGDirectDisplayID display, CFDictionaryRef mode)
{
CGDisplayConfigRef config;
if (CGBeginDisplayConfiguration(&config) == kCGErrorSuccess) {
CGConfigureDisplayMode(config, display, mode);
CGCompleteDisplayConfiguration(config, kCGConfigureForSession );
return true;
}
return false;
}
Save that as a pure text file named setgetscreenres.m, then compile it
in Terminal using the command shown in the code (assuming you're in
the directory where the file is saved):
c++ setgetscreenres.m -framework ApplicationServices -o setgetscreenres
Move this file somewhere on your user's $PATH, and then use it by
typing ./setgetscreenres hor_res vert_res, where hor_res and vert_res
are the desire horizontal and vertical resolution.
Dichiarazione di non responsabilità: non l'ho provato!