Я использую directx.audiovideoplayback для воспроизведения AVI, и я хочу, чтобы размер видео был равен 320x240 (это фактический размер 1260x876), но когда я делаю то, что кажется, я должен это сделать, этого не происходит. Я также попытался прикрепить обработчик события для события TextureReadyToRender, но, похоже, он не срабатывает при воспроизведении видео. Документация в Microsoft менее чем полезна.
Я соответственно установил размеры видео и панели и прикрепил обработчик событий в соответствии с инструкциями.
#pragma once
#include "metahost.h"
namespace PlaAVIviaDirectX {
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
using namespace Microsoft::DirectX::AudioVideoPlayback;
using namespace System::Configuration;
/// <summary>
/// Summary for Form1
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
//
//TODO: Add the constructor code here
//
System::Drawing::Size vSize = System::Drawing::Size(320,240);
panel1->Width = 320;
panel1->Height = 240;
video = gcnew Microsoft::DirectX::AudioVideoPlayback::Video("D:\\SS-RICS Eric Stuff\\intro.avi");
video->TextureReadyToRender += gcnew Microsoft::DirectX::AudioVideoPlayback::TextureRenderEventHandler(this, &Form1::FrameHandler);
video->DefaultSize = vSize;
video->Owner = panel1;
//video->TextureReadyToRender += gcnew Microsoft::DirectX::AudioVideoPlayback::TextureRenderEventHandler(this, &Form1::FrameHandler);
}
protected:
/// <summary>
/// Clean up any resources being used.
/// </summary>
~Form1()
{
if (components)
{
delete components;
}
}
private: Microsoft::DirectX::AudioVideoPlayback::Video^ video;
private: System::Windows::Forms::Panel^ panel1;
protected:
private: System::Windows::Forms::Button^ button1;
private: System::Windows::Forms::Button^ button2;
private: System::Windows::Forms::Button^ button3;
private:
/// <summary>
/// Required designer variable.
/// </summary>
System::ComponentModel::Container ^components;
#pragma region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
void InitializeComponent(void)
{
this->panel1 = (gcnew System::Windows::Forms::Panel());
this->button1 = (gcnew System::Windows::Forms::Button());
this->button2 = (gcnew System::Windows::Forms::Button());
this->button3 = (gcnew System::Windows::Forms::Button());
this->SuspendLayout();
//
// panel1
//
this->panel1->Location = System::Drawing::Point(12, 12);
this->panel1->Name = L"panel1";
this->panel1->Size = System::Drawing::Size(320, 240);
this->panel1->TabIndex = 0;
//
// button1
//
this->button1->Location = System::Drawing::Point(12, 314);
this->button1->Name = L"button1";
this->button1->Size = System::Drawing::Size(75, 23);
this->button1->TabIndex = 1;
this->button1->Text = L"play";
this->button1->UseVisualStyleBackColor = true;
this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
//
// button2
//
this->button2->Location = System::Drawing::Point(12, 343);
this->button2->Name = L"button2";
this->button2->Size = System::Drawing::Size(75, 23);
this->button2->TabIndex = 2;
this->button2->Text = L"pause";
this->button2->UseVisualStyleBackColor = true;
this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
//
// button3
//
this->button3->Location = System::Drawing::Point(12, 372);
this->button3->Name = L"button3";
this->button3->Size = System::Drawing::Size(75, 23);
this->button3->TabIndex = 3;
this->button3->Text = L"stop";
this->button3->UseVisualStyleBackColor = true;
this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(347, 407);
this->Controls->Add(this->button3);
this->Controls->Add(this->button2);
this->Controls->Add(this->button1);
this->Controls->Add(this->panel1);
this->Name = L"Form1";
this->Text = L"Form1";
this->ResumeLayout(false);
}
#pragma endregion
private: void FrameHandler(Object^ sender, Microsoft::DirectX::AudioVideoPlayback::TextureRenderEventArgs^ e)
{
Microsoft::DirectX::Direct3D::Texture^ frame = e->Texture;
System::Diagnostics::Trace::WriteLine("texture");
}
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
video->Play();
}
private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e) {
video->Pause();
}
private: System::Void button3_Click(System::Object^ sender, System::EventArgs^ e) {
video->Stop();
}
};
}
Я ожидал увидеть видео и видео соразмерного размера, показывающие, что обработчик событий работает.