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optimize x11 display code

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This commit is contained in:
vcaesar 2022-01-01 14:39:55 -04:00
parent b2702100cb
commit fe42b2a74c
1 changed files with 6 additions and 9 deletions
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15
base/xdisplay_c.h
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@ -4,11 +4,11 @@
static Display *mainDisplay = NULL;
static int registered = 0;
static char *displayName = NULL;
static int hasDisplayNameChanged = 0;
Display *XGetMainDisplay(void)
{
Display *XGetMainDisplay(void) {
/* Close the display if displayName has changed */
if (hasDisplayNameChanged) {
XCloseMainDisplay();
@ -20,7 +20,7 @@ Display *XGetMainDisplay(void)
mainDisplay = XOpenDisplay(displayName);
/* Then try using environment variable DISPLAY */
if (mainDisplay == NULL) {
if (mainDisplay == NULL && displayName != NULL) {
mainDisplay = XOpenDisplay(NULL);
}
@ -40,22 +40,19 @@ Display *XGetMainDisplay(void)
return mainDisplay;
}
void XCloseMainDisplay(void)
{
void XCloseMainDisplay(void) {
if (mainDisplay != NULL) {
XCloseDisplay(mainDisplay);
mainDisplay = NULL;
}
}
void setXDisplay(char *name)
{
void setXDisplay(char *name) {
displayName = strdup(name);
hasDisplayNameChanged = 1;
}
char *getXDisplay(void)
{
char *getXDisplay(void) {
return displayName;
}