@@ -1,5 +1,5 @@

 CC=gcc

-CFLAGS=-g -Wall

+CFLAGS=-g -Wall -pthread

 LDFLAGS=

 all: imgmover imgmover.exe

@@ -8,9 +8,10 @@ imgmover: imgmover.c roboto_regular.c

 	$(CC) $(CFLAGS) -Iexternal/raylib/include/ imgmover.c external/raylib/libraylib.a -lm $(LDFLAGS) -o imgmover

 imgmover.exe: imgmover.c roboto_regular.c

-	sh -c "if [ ! -e test-icon_256x256.png ] ; then	convert -size 256x256 xc:white test-icon_256x256.png ; fi"

+	sh -c "if [ ! -e test-icon_256x256.png ] ; then convert -size 256x256 xc:white test-icon_256x256.png ; fi"

 	toolchain-zig/compile.sh imgmover.c -c -o imgmover-windows.o

-	toolchain-zig/link.sh -icon test-icon_256x256.png imgmover.exe imgmover-windows.o toolchain-zig/windows-msys2-mingw/lib/libraylib.a

+	toolchain-zig/compile.sh win32_pipe.c -c -o win32_pipe-windows.o

+	toolchain-zig/link.sh -icon test-icon_256x256.png imgmover.exe imgmover-windows.o win32_pipe-windows.o toolchain-zig/windows-msys2-mingw/lib/libraylib.a toolchain-zig/windows-msys2-mingw/lib/libpthread.a toolchain-zig/windows-msys2-mingw/lib/libwinpthread.a

 roboto_regular.c: ttf2h.sh fonts/Roboto-Regular.ttf

 	./ttf2h.sh fonts/Roboto-Regular.ttf

@@ -18,5 +19,5 @@ roboto_regular.c: ttf2h.sh fonts/Roboto-Regular.ttf

 roboto_regular.h: roboto_regular.c

 clean:

-	rm -f imgmover-windows.o imgmover imgmover.exe

+	rm -f imgmover-windows.o win32_pipe-windows.o imgmover imgmover.exe

@@ -32,6 +32,7 @@

  *               Dirdata colors. Select dirdata.

  *      20250329 Background loading of thumbnails.

  *      20250330 Refine background loading.

+ *      20250413 Background loading for windows target.

  *

  * Author: Dario Rodriguez dario@darionomono.com

  * (c) Dario Rodriguez 2025

@@ -326,6 +327,8 @@ int bg_freeunmarked(bg_t *bg);

 void *bg_thread(void *);

+static int mypipe(int fds[2]);

+

 int

 main(int argc, char *argv[])

 {

@@ -1852,7 +1855,7 @@ bg_init(int sizebgload)

         bg=NULL;

         if((bg=calloc(1,sizeof(bg_t)))==NULL

           || (bg->pipe[0]=bg->pipe[1]=-1)!=-1

-          || pipe(bg->pipe)!=0

+          || mypipe(bg->pipe)!=0

           || (bg->bgload=calloc(sizebgload,sizeof(bgload_t)))==NULL

           || (bg->sizebgload=sizebgload)!=sizebgload

           || pthread_attr_init(&(bg->tattr))!=0

@@ -2018,3 +2021,18 @@ bg_thread(void *parambg)

         pthread_exit(NULL);

 }

+#if !defined(__linux__) && !defined(ANDROID)

+#include "win32_pipe.h"

+static int

+mypipe(int fds[2])

+{

+        return(win32_pipe(fds));

+}

+#else

+static int

+mypipe(char fds[2])

+{

+        return(pipe(fds));

+}

+#endif

+

new file mode 100644

@@ -0,0 +1,57 @@

+#include <winsock2.h>

+

+#ifndef FILLIPV4ADDR

+#define FILLIPV4ADDR(a,family,addr,port) \

+                memset(&(a),0,sizeof(struct sockaddr_in)),\

+                s.sin_family=family,\

+                s.sin_addr.s_addr=addr,\

+                s.sin_port=htons(port)

+#endif

+

+#ifndef SHUT_WR

+#define SHUT_WR SD_SEND

+#endif

+

+#ifndef SHUT_RD

+#define SHUT_RD SD_RECEIVE

+#endif

+

+#define close(s) closesocket(s)

+

+int

+win32_pipe(int fds[2])

+{

+        int serverfd,workfd,clientfd;

+        struct sockaddr_in c,s;

+        int sizes,sizec;

+        FILLIPV4ADDR(s,AF_INET,htonl(INADDR_ANY),0);

+        serverfd=workfd=clientfd=-1;

+        if((serverfd=socket(AF_INET,SOCK_STREAM,0))==-1

+          || bind(serverfd,(struct sockaddr *)&s,sizeof(s))!=0

+          || listen(serverfd,1)==-1

+          || (sizes=sizeof(s))!=sizeof(s)

+          || getsockname(serverfd,(struct sockaddr *)&s,&sizes)==-1

+          || memcpy(&c,&s,sizeof(c))==NULL

+          || (clientfd=socket(AF_INET,SOCK_STREAM,0))==-1

+          || connect(clientfd,(struct sockaddr *)&c,sizeof(c))==-1

+          || (sizes=sizeof(s))!=sizeof(s)

+          || (workfd=accept(serverfd,(struct sockaddr *)&s,&sizes))==-1

+          || (sizec=sizeof(c))!=sizeof(c)

+          || getsockname(workfd,(struct sockaddr *)&c,&sizec)==-1

+          || memcmp(&c,&s,sizeof(c))!=0

+        ) {

+                if(serverfd!=-1)

+                        close(serverfd),serverfd=-1;

+                if(clientfd!=-1)

+                        close(clientfd),clientfd=-1;

+                if(workfd!=-1)

+                        close(workfd),workfd=-1;

+        }

+        close(serverfd),serverfd=-1;

+        shutdown(workfd,SHUT_WR);

+        shutdown(clientfd,SHUT_RD);

+        fds[0]=workfd,workfd=-1;

+        fds[1]=clientfd,clientfd=-1;

+        return(0);

+}

+

new file mode 100644

@@ -0,0 +1,2 @@

+

+int win32_pipe(int fds[2]);