Silme94 Posts - Answer Overflow

Silme94

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CC#

•Created by Silme94 on 11/19/2024 in #help

Windows Forms drawing not saving

26 replies

CC#

•Created by Silme94 on 10/22/2024 in #help

Loading Form crashing (Windows Form)

So im doing a pdf viewver using winform. I wanted to add a form that indicate the progression when loading the pdf pages. The problem is that the application crash during the for loop, and the loading form is not showing up before and its showing at the end of the loop but this is useless since the content is already loaded and it close immediately. I've tried many thing like using Task.Run but i cannot fix it. (pls help)

32 replies

CC#

•Created by Silme94 on 7/12/2024 in #help

Windows Forms Wrong color help

4 replies

CC#

•Created by Silme94 on 6/29/2024 in #help

FlowLayoutPanel TopDown problem

2 replies

CC#

•Created by Silme94 on 6/19/2024 in #help

✅ Database cmd.ExecuteScalar() ERROR

17 replies

CC#

•Created by Silme94 on 6/11/2024 in #help

Windows Forms EXE

When i compile my app to Release, the machine require dotnet or else it shows a messagebox thats tell to install it, however i dont wanna this.

10 replies

CC#

•Created by Silme94 on 4/17/2024 in #help

✅ ImGui.NET and OpenTK

hello, i tried to render a basic imgui window on my opentk window, but it just dont works and crash with an exception

using System;
using ImGuiNET;
using OpenTK;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL4;
using OpenTK.Mathematics;
using OpenTK.Windowing.Common;
using OpenTK.Windowing.Desktop;

namespace ImGuiWithOpenTK
{
    class Program
    {
        private static GameWindow gameWindow;

        public static void Main(string[] args)
        {
            NativeWindowSettings nativeWindowSettings = new NativeWindowSettings
            {
                Size = new Vector2i(800, 600),
                Title = "ImGui with OpenTK",
                API = ContextAPI.OpenGL,
                APIVersion = new Version(4, 6),
            };

            GameWindowSettings gameWindowSettings = new GameWindowSettings
            {
                UpdateFrequency = 60
            };

            gameWindow = new GameWindow(gameWindowSettings, nativeWindowSettings);

            gameWindow.Load += GameWindow_Load;

            gameWindow.RenderFrame += GameWindow_RenderFrame;

            gameWindow.UpdateFrame += GameWindow_UpdateFrame;

            gameWindow.Run();
        }

        private static void GameWindow_UpdateFrame(FrameEventArgs obj)
        {

        }

        private static void GameWindow_RenderFrame(FrameEventArgs obj)
        {
            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);

            ImGui.NewFrame();
            ImGui.Begin("Demo windows");
            ImGui.Text("Hello world");
            ImGui.End();
            ImGui.Render();

            gameWindow.SwapBuffers();
        }

        private static void GameWindow_Load()
        {
            GL.ClearColor(Color4.CornflowerBlue);

            ImGui.CreateContext();
            ImGuiIOPtr io = ImGui.GetIO();
            ImGui.StyleColorsDark();
        }
    }
}

using System;
using ImGuiNET;
using OpenTK;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL4;
using OpenTK.Mathematics;
using OpenTK.Windowing.Common;
using OpenTK.Windowing.Desktop;

namespace ImGuiWithOpenTK
{
    class Program
    {
        private static GameWindow gameWindow;

        public static void Main(string[] args)
        {
            NativeWindowSettings nativeWindowSettings = new NativeWindowSettings
            {
                Size = new Vector2i(800, 600),
                Title = "ImGui with OpenTK",
                API = ContextAPI.OpenGL,
                APIVersion = new Version(4, 6),
            };

            GameWindowSettings gameWindowSettings = new GameWindowSettings
            {
                UpdateFrequency = 60
            };

            gameWindow = new GameWindow(gameWindowSettings, nativeWindowSettings);

            gameWindow.Load += GameWindow_Load;

            gameWindow.RenderFrame += GameWindow_RenderFrame;

            gameWindow.UpdateFrame += GameWindow_UpdateFrame;

            gameWindow.Run();
        }

        private static void GameWindow_UpdateFrame(FrameEventArgs obj)
        {

        }

        private static void GameWindow_RenderFrame(FrameEventArgs obj)
        {
            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);

            ImGui.NewFrame();
            ImGui.Begin("Demo windows");
            ImGui.Text("Hello world");
            ImGui.End();
            ImGui.Render();

            gameWindow.SwapBuffers();
        }

        private static void GameWindow_Load()
        {
            GL.ClearColor(Color4.CornflowerBlue);

            ImGui.CreateContext();
            ImGuiIOPtr io = ImGui.GetIO();
            ImGui.StyleColorsDark();
        }
    }
}

71 replies

CC#

•Created by Silme94 on 4/13/2024 in #help

✅ Using a C# DLL in C++

im actually trying to call a C# dll from c++ with DllExport, the c++ code return no error but dont execute the functions, here is the source : C# :

using System.Runtime.InteropServices;
using System;


namespace InternalTest
{
    public class Class1
    {
        
        [DllImport("user32.dll")]
        public static extern int MessageBox(int hWnd, string text, string caption, uint type);


        [DllExport(CallingConvention = CallingConvention.StdCall)]
        public static void DllEntryPoint()
        {
            Console.WriteLine("This is a message from C#");
            MessageBox(0, "C# is good", "hello world", 0);
        }
    }
}

using System.Runtime.InteropServices;
using System;


namespace InternalTest
{
    public class Class1
    {
        
        [DllImport("user32.dll")]
        public static extern int MessageBox(int hWnd, string text, string caption, uint type);


        [DllExport(CallingConvention = CallingConvention.StdCall)]
        public static void DllEntryPoint()
        {
            Console.WriteLine("This is a message from C#");
            MessageBox(0, "C# is good", "hello world", 0);
        }
    }
}

C++ :

#include <stdio.h>
#include <Windows.h>

int main(int argc, char **argv) {
    if (argv[1] == NULL) {
        printf("Usage : dll_executor <DLL_PATH>\n");
        return -1;
    }

    char* Dll_Path = argv[1];
    HMODULE hModule = LoadLibraryA(Dll_Path);
    if (hModule == NULL) {
        printf("Failed to load the dll.\n");
    }

    LPCSTR Function_To_Execute = "DllEntryPoint"; // Function to execute in the dll
    
    HANDLE hThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)GetProcAddress(hModule, Function_To_Execute), NULL, 0, NULL);
    if (hThread == NULL) {
        printf("Failed to create thread.\n");
    }

    printf("Dll Executed!\n");
    WaitForSingleObject(hThread, INFINITE);
    CloseHandle(hThread);
    FreeLibrary(hModule);

    return 0;
}

#include <stdio.h>
#include <Windows.h>

int main(int argc, char **argv) {
    if (argv[1] == NULL) {
        printf("Usage : dll_executor <DLL_PATH>\n");
        return -1;
    }

    char* Dll_Path = argv[1];
    HMODULE hModule = LoadLibraryA(Dll_Path);
    if (hModule == NULL) {
        printf("Failed to load the dll.\n");
    }

    LPCSTR Function_To_Execute = "DllEntryPoint"; // Function to execute in the dll
    
    HANDLE hThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)GetProcAddress(hModule, Function_To_Execute), NULL, 0, NULL);
    if (hThread == NULL) {
        printf("Failed to create thread.\n");
    }

    printf("Dll Executed!\n");
    WaitForSingleObject(hThread, INFINITE);
    CloseHandle(hThread);
    FreeLibrary(hModule);

    return 0;
}

The cpp code says that it got executed but it doesn't really

49 replies

CC#

•Created by Silme94 on 4/9/2024 in #help

C# DLL failed to load

23 replies

CC#

•Created by Silme94 on 3/20/2024 in #help

✅ Cannot make an label background color transparent (On a picture box)

32 replies

CC#

•Created by Silme94 on 11/18/2022 in #help

❔ System.Net.Http Not Found

18 replies

CC#

•Created by Silme94 on 11/16/2022 in #help

user32.dll how to add icon on message box

how to add icon on user32.dll msgbox?

using System;
using System.Runtime.InteropServices;

class Program{

    [DllImport("user32.dll", CharSet = CharSet.Unicode)]
    public static extern int MessageBox(IntPtr hW, String content, String title, uint type);
    public static string text;
    public static string argument;
    static void Main(string[] args){
        for (int i = 0; i < args.Length; i++)
        {
            argument = argument + " " + args[i];
        }
        text = argument;
        MessageBox(new IntPtr(0), text, "Error", 0);
    }
}

using System;
using System.Runtime.InteropServices;

class Program{

    [DllImport("user32.dll", CharSet = CharSet.Unicode)]
    public static extern int MessageBox(IntPtr hW, String content, String title, uint type);
    public static string text;
    public static string argument;
    static void Main(string[] args){
        for (int i = 0; i < args.Length; i++)
        {
            argument = argument + " " + args[i];
        }
        text = argument;
        MessageBox(new IntPtr(0), text, "Error", 0);
    }
}

3 replies

CC#

•Created by Silme94 on 11/16/2022 in #help

❔ Space Problem

12 replies

CC#

•Created by Silme94 on 11/13/2022 in #help

Copying File Error (not working)

62 replies

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