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X11 has a so-called primary selection, which you can use by marking text and middle-clicking elsewhere to copy the marked text.
There are 3 new API functions in `SDL_clipboard.h`, which work exactly like their clipboard equivalents.
## Test Instructions
* Run the tests (just a copy of the clipboard tests): `$ ./test/testautomation --filter Clipboard`
* Build and run this small application:
<details>
```C
#include <SDL.h>
#include <unistd.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void print_error(const char *where)
{
const char *errstr = SDL_GetError();
if (errstr == NULL || errstr[0] == '\0')
return;
fprintf(stderr, "SDL Error after '%s': %s\n", where, errstr);
SDL_ClearError();
}
int main()
{
char text_buf[256];
srand(time(NULL));
SDL_Init(SDL_INIT_VIDEO);
print_error("SDL_INIT()");
SDL_Window *window = SDL_CreateWindow("Primary Selection Test", SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED, 400, 400, SDL_WINDOW_SHOWN);
print_error("SDL_CreateWindow()");
SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
print_error("SDL_CreateRenderer()");
bool quit = false;
unsigned int do_render = 0;
while (!quit) {
SDL_Event event;
while (SDL_PollEvent(&event)) {
print_error("SDL_PollEvent()");
switch (event.type) {
case SDL_QUIT: {
quit = true;
break;
} case SDL_KEYDOWN: {
switch (event.key.keysym.sym) {
case SDLK_ESCAPE:
case SDLK_q:
quit = true;
break;
case SDLK_c:
snprintf(text_buf, sizeof(text_buf), "foo%d", rand());
SDL_SetClipboardText(text_buf);
print_error("SDL_SetClipboardText()");
printf("clipboard: set_to=\"%s\"\n", text_buf);
break;
case SDLK_v: {
printf("clipboard: has=%d, ", SDL_HasClipboardText());
print_error("SDL_HasClipboardText()");
char *text = SDL_GetClipboardText();
print_error("SDL_GetClipboardText()");
printf("text=\"%s\"\n", text);
SDL_free(text);
break;
} case SDLK_d:
snprintf(text_buf, sizeof(text_buf), "bar%d", rand());
SDL_SetPrimarySelectionText(text_buf);
print_error("SDL_SetPrimarySelectionText()");
printf("primselec: set_to=\"%s\"\n", text_buf);
break;
case SDLK_f: {
printf("primselec: has=%d, ", SDL_HasPrimarySelectionText());
print_error("SDL_HasPrimarySelectionText()");
char *text = SDL_GetPrimarySelectionText();
print_error("SDL_GetPrimarySelectionText()");
printf("text=\"%s\"\n", text);
SDL_free(text);
break;
} default:
break;
}
break;
} default: {
break;
}}
}
// create less noise with WAYLAND_DEBUG=1
if (do_render == 0) {
SDL_RenderPresent(renderer);
print_error("SDL_RenderPresent()");
}
do_render += 1;
usleep(12000);
}
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();
print_error("quit");
return 0;
}
```
</details>
* Use c,v,d,f to get and set the clipboard and primary selection.
* Mark text and middle-click also in other applications.
* For wayland under x:
* `$ mutter --wayland --no-x11 --nested`
* `$ XDG_SESSION_TYPE=wayland SDL_VIDEODRIVER=wayland ./<path_to_test_appl_binary>`
|
||
|---|---|---|
| .. | ||
| emscripten | ||
| nacl | ||
| shapes | ||
| acinclude.m4 | ||
| autogen.sh | ||
| axis.bmp | ||
| button.bmp | ||
| checkkeys.c | ||
| checkkeysthreads.c | ||
| CMakeLists.txt | ||
| configure | ||
| configure.ac | ||
| controllermap.bmp | ||
| controllermap.c | ||
| controllermap_back.bmp | ||
| COPYING | ||
| icon.bmp | ||
| loopwave.c | ||
| loopwavequeue.c | ||
| Makefile.in | ||
| Makefile.os2 | ||
| Makefile.w32 | ||
| moose.dat | ||
| picture.xbm | ||
| README | ||
| relative_mode.markdown | ||
| sample.bmp | ||
| sample.wav | ||
| template.test.in | ||
| testatomic.c | ||
| testaudiocapture.c | ||
| testaudiohotplug.c | ||
| testaudioinfo.c | ||
| testautomation.c | ||
| testautomation_audio.c | ||
| testautomation_clipboard.c | ||
| testautomation_events.c | ||
| testautomation_guid.c | ||
| testautomation_hints.c | ||
| testautomation_joystick.c | ||
| testautomation_keyboard.c | ||
| testautomation_main.c | ||
| testautomation_math.c | ||
| testautomation_mouse.c | ||
| testautomation_pixels.c | ||
| testautomation_platform.c | ||
| testautomation_rect.c | ||
| testautomation_render.c | ||
| testautomation_rwops.c | ||
| testautomation_sdltest.c | ||
| testautomation_stdlib.c | ||
| testautomation_suites.h | ||
| testautomation_surface.c | ||
| testautomation_syswm.c | ||
| testautomation_timer.c | ||
| testautomation_video.c | ||
| testbounds.c | ||
| testcustomcursor.c | ||
| testdisplayinfo.c | ||
| testdraw2.c | ||
| testdrawchessboard.c | ||
| testdropfile.c | ||
| testerror.c | ||
| testevdev.c | ||
| testfile.c | ||
| testfilesystem.c | ||
| testgamecontroller.c | ||
| testgeometry.c | ||
| testgesture.c | ||
| testgl2.c | ||
| testgles.c | ||
| testgles2.c | ||
| testgles2_sdf.c | ||
| testgles2_sdf_img_normal.bmp | ||
| testgles2_sdf_img_sdf.bmp | ||
| testhaptic.c | ||
| testhittesting.c | ||
| testhotplug.c | ||
| testiconv.c | ||
| testime.c | ||
| testintersections.c | ||
| testjoystick.c | ||
| testkeys.c | ||
| testloadso.c | ||
| testlocale.c | ||
| testlock.c | ||
| testmessage.c | ||
| testmouse.c | ||
| testmultiaudio.c | ||
| testnative.c | ||
| testnative.h | ||
| testnativecocoa.m | ||
| testnativeos2.c | ||
| testnativew32.c | ||
| testnativex11.c | ||
| testoffscreen.c | ||
| testoverlay2.c | ||
| testplatform.c | ||
| testpower.c | ||
| testqsort.c | ||
| testrelative.c | ||
| testrendercopyex.c | ||
| testrendertarget.c | ||
| testresample.c | ||
| testrumble.c | ||
| testscale.c | ||
| testsem.c | ||
| testsensor.c | ||
| testshader.c | ||
| testshape.c | ||
| testsprite2.c | ||
| testspriteminimal.c | ||
| teststreaming.c | ||
| testsurround.c | ||
| testthread.c | ||
| testtimer.c | ||
| testurl.c | ||
| testutils.c | ||
| testutils.h | ||
| testver.c | ||
| testviewport.c | ||
| testvulkan.c | ||
| testwm2.c | ||
| testyuv.bmp | ||
| testyuv.c | ||
| testyuv_cvt.c | ||
| testyuv_cvt.h | ||
| torturethread.c | ||
| unifont-13.0.06-license.txt | ||
| unifont-13.0.06.hex | ||
| utf8.txt | ||
| versioning.sh | ||
| watcom.mif | ||
These are test programs for the SDL library:
checkkeys Watch the key events to check the keyboard
loopwave Audio test -- loop playing a WAV file
loopwavequeue Audio test -- loop playing a WAV file with SDL_QueueAudio
testsurround Audio test -- play test tone on each audio channel
testaudioinfo Lists audio device capabilities
testerror Tests multi-threaded error handling
testfile Tests RWops layer
testgl2 A very simple example of using OpenGL with SDL
testiconv Tests international string conversion
testjoystick List joysticks and watch joystick events
testkeys List the available keyboard keys
testloadso Tests the loadable library layer
testlocale Test Locale API
testlock Hacked up test of multi-threading and locking
testmouse Tests mouse coordinates
testmultiaudio Tests using several audio devices
testoverlay2 Tests the overlay flickering/scaling during playback.
testplatform Tests types, endianness and cpu capabilities
testsem Tests SDL's semaphore implementation
testshape Tests shaped windows
testsprite2 Example of fast sprite movement on the screen
testthread Hacked up test of multi-threading
testtimer Test the timer facilities
testver Check the version and dynamic loading and endianness
testwm2 Test window manager -- title, icon, events
torturethread Simple test for thread creation/destruction
controllermap Useful to generate Game Controller API compatible maps
This directory contains sample.wav, which is a sample from Will Provost's
song, The Living Proof:
From the album The Living Proof
Publisher: 5 Guys Named Will
Copyright 1996 Will Provost
You can get a copy of the full song (and album!) from iTunes...
https://itunes.apple.com/us/album/the-living-proof/id4153978
or Amazon...
http://www.amazon.com/The-Living-Proof-Will-Provost/dp/B00004R8RH
Thanks to Will for permitting us to distribute this sample with SDL!